You have it completely backwards. Nearly every one of the changes you mentioned costs Apple more money.
First, I don't think the magnetic latch is significantly cheaper than the mechanical one. Plus, it's a better design - the mechanical latch sucked. So, latch is a non-issue.
Well key word here you mention is "think" regardless of what you may think the mechanical latch was a more secure holding method to the magnets and if you think the cost of using simply raw magnets over a engineered, multiple shaped machined and assembled components design costs more, than I think you would find your mistaken. I worked most of my life in an Aerospace manufacturing environment and can tell you it would certainly cost more to include a latching mechanism than magnets. Not to mention I have not had a single issue with the previous latch ever. It works flawlessly.
No Apple laptop has ever had a metal keyboard. Pop the keys off your old MacBook Pro - they're plastic. Also, watch the video on the Apple website, and note how much time it takes to machine the holes for the new keyboard - one for each individual key. That takes a lot longer than just cutting a big rectangle for the whole keyboard. The new keyboard costs Apple
more money.
As for the metal keyboard, regardless of whether the previous MBP keys were in fact metal or not, they are certainly finished to an effect that was not only extremely close to the feel of aluminum but esthetically matching to the rest of the design. Not like the raw black plastic keys in the new ones. Where there is no effort or cost to match the rest of the chassis and are already being used on other models. This is the Frankenstein effect so it is saving money. Buying in bigger quantity for a part being used all over the place. Not a part designed for that specific machine. As for the CNC milling of the slots, DON'T make me laugh, I worked in a machining facility most of my life and with Aluminum being like butter to cut and the high speed mills running set programs over and over, it is a joke to think the cycle times are anything for hogging the key slots out. Not to mention it sure seems by the posts here MANY have crooked poorly machined slots on their new MBP. Just look at the thread here on it. https://forums.macrumors.com/threads/585752/
The 50 watt-hour battery is lighter and takes up less space. There isn't room for a bigger battery, and the laptop is already .1 pounds heavier as it is because of the (expensive!) glass screen. Battery is a non-issue.
This is a no brainer, if you think a 50 w-hr battery costs more than a 60 then do a little research on the pricing. I don't buy the excuse there is no room for it, a good design provides for critical components like an adequate battery fitting in. Not to mention the cheap battery design being crooked and difficult to install on the new models. Again look at the threads here. https://forums.macrumors.com/threads/585713/ https://forums.macrumors.com/threads/584949/
The trackpad does have a "manual", actual button - it's just that the whole trackpad moves now, not just a button at the bottom. Plus, it's a bigger trackpad (more expensive!), with a glass cover. Trackpad is a non-issue. The larger, glass-cover and the new button design cost them more money - they could have just gone with the old design.
I realize the Trackpad itself is a button but try and use it in both OSX and Windows and tell me how much better it is. Not to mention try and use it to highlight text by holding down the button while moving across the surface. Development costs up front for some of the new features might cost more up front but in the long run will be cheaper once R&D is recouped.
Not sure how the glass screen is a cost-cutting measure. The glossy screen on my new MBP is loads better than the matte screen on my one-year-old one in terms of brightness, backlight evenness, clarity, contrast, etc. And glass is a lot more expensive than plastic, not to mention better - it doesn't scratch, doesn't discolor, etc. The screen costs Apple more money. I suppose they save some money in their
manufacturing process by standardizing on a screen design, but that's hardly a quality issue.
This costs savings can more easily be seen in the fact that glossy screens are cheaper to make and there is no bezel material and using the same screen across the board will save money over offering multiple options. Reference to quality on this item was geared to the overall quality of the machine being less in its design and not so much a defect sense. Just ask the matte screen people how happy they are not having that option anymore. Or how so many just love that gigantic black border in lieu of a real bezel around the screen. Cost cost cost is the king here. And if you think the glass is un-scratch-able or indestructible your also mistaken.
The proprietary mini-DisplayPort connector also cost them more money. They had to design it from scratch, and designing a new connector is not as simple as you might think, especially when you're talking about multi-gigahertz signals like DisplayPort. It would have been cheaper for them to slap a cheap, generic, been-around-for-years DVI plug on there and call it a day. Hell, they could've used mini-DVI like on the existing MacBooks and MBA, but instead, they decided to
spend the extra money and go with the next-generation standard.
Proprietary anything is never a desired feature of quality in IT. Thats why there are industry standards that 99% of the industry follow to ensure inter compatibility. While designing a proprietary connector may be costly up front, in the end you will have a captive audience for your over priced connectors as you will not be able to easily get them from anyone else. Not to mention the frustration in trying to connect to a peripheral on the go somewhere only to find it is not going to fit this proprietary port leaving you stuck. Good luck finding a projector you can hook that thing up to real quick during a presentation at a hotel, clients meeting rooms or wherever. This in the end will be a cost saver and money harvester for them in the long run.
As for the missing Firewire port, if you look inside the computer, there is physically nowhere they could put another port (that's another reason for the mini-Displayport connector - a big honking DVI port wouldn't fit either).
This is a designers problem which is where it should have been left at the design stage and not on the customers end product. Again any quality design will provide for the required functionality of the device otherwise it is less of a design then its predecessor isn't it?
As for the Firewire chip - yeah, apparently Apple did go with a lower-cost Firewire chip. Big freaking deal. It's digital and Firewire is a standard - the whole point of standards is that it doesn't matter who makes the devices. Out of every design change in the new MBP, this is the
only one that you can argue was a cost-cutting measure.
Here it is obvious your not as familiar with various chip brands and their compatibilities with other devices. The whole concept of its a standard and it doesn't matter who makes it is nothing short of ridiculous. There are so many makers of chips that supposedly comply with standards that WILL NEVER WORK with other devices because their lessor quality doesn't allow proper operation within the standards. This can be seen across every area from USB, Firewire, WIFI, DRAM, etc. Anyone working with hardware knows this. Simply read some of the threads all over the internet on certain device not working with certain chips and you will see. The reason the more expensive chips cost more is their compatibility plain and simple. Cheaper chips = cheaper quality hands down.
https://forums.macrumors.com/threads/587114/
Frankly, I'm amazed that they managed to keep the prices unchanged, given all the expensive changes that have gone into the new model. If I was Steve Jobs and someone accused me off cost-cutting, I'd be pissed - if anything, their margins have gone
down on this model.
Well frankly I am amazed they could reduce the quality of this release so much and expect to charge the same money as the old true PRO models for it. Again any increases in up front costs will be far outweighed by their long term savings. However based on the numbers of people unhappy with it, I personally believe Apple will phase this out quickly when it negatively affects their bottom line from loss of sales numbers. Just like the short lived previous Nano design. Whoops I blinked where did it go?
So, moral of the story - quit whining. As I said, out of the entire list of changes in the new MBP (except for the Firewire chip, which is irrelevant as I discussed), I cannot think of a
single one that's an obvious cost-cutting measure, and can think of
several that cost them more money.