As for a hackintosh, that's only good if you don't mind your computer not being quite the 100% workable solution, constantly requiring maintenance and hacks to keep running and up to date, with the potential to break at any time.
Not really what the enterprise market wants, the "pros" if you will.
Your experience with Hackintoshing must be out of date; it's pretty easy and seamless to set up and maintain a Hackintosh. And by "maintain" I also mean "keep up to date with the latest point releases of the OS". These days you don't need special hacks or anything beyond drivers and a custom bootloader; most Hackintoshes these days are able to run the stock Apple kernel too. Frankly, if ever I was to own a Mac OS X Server machine, it'd be a Hackintosh as only the Mac Pro offers the same kinds of storage flexibility that a Hackintosh handily provides and no way do I need to pay that much money for what little I'd actually be doing with it.
Hackintoshes only cause problems for people who don't read, do their research, or follow directions right the first time. Would I have it as my only Macintosh? No, but you definitely could and it wouldn't cause you much inconvenience. Yes, it's more maintenance than an Apple Mac, but you save a crap-ton of money for the power you get.
Your argument is no different than those asking for the ODD to stay. A relatively minor need that could easily be replicated with an adaptor.
How many times do I need to spell this out? YOU CANNOT GET A USB 2.0 TO GIGABIT ETHERNET ADAPTER!!! USB 2.0 maxes out at 480 megabits per second, one gigabit is 520 megabits per second more than that, ergo, YOU CANNOT REPLICATE THAT FUNCTIONALITY WITH AN ADAPTER! And before you try to sell me on the idea of spending $100 or so on a would-be Thunderbolt adapter, remind me why it's a good idea to spend $100 on functionality that I didn't have to spend anything on previously? So you guys didn't have to lug around a couple extra pounds? Get real!
As for the ODD, those who don't care about losing the ODD seem to assume that those of us that do would be fine carrying around an additional accessory as that is just as convenient, when in actuality, it isn't. Losing it only gains thinness, which any practical computer user shouldn't care all that much about anyway.
Yebubbleman, my point was that the ODD and cd/dvd's are going away. Yes, there is still a price difference between blank cd/dvd's and yes there are still a lot of people using ODD's, but at some point you have to start moving forward (in tech) in order to keep moving forward.
Your point was that they were already cheap enough to be considered as viable of a replacement. I feel like I successfully disproved that.
Apple takes the chance at pissing off customers by dropping certain technologies. I remember getting one of the first Apple desktops that did not come with a floppy drive. They were lambasted for doing this and I had countless conversations with colleagues that laughed at me for getting a machine with no floppy drive - how could I load any software on it, they said. Within months, the shift had started with titles going to cd.
For all intensive purposes, by the time the floppy drive had disappeared, so had installation media that came on it. As things stand now, software for the Mac still comes predominately on disk. I will pay heed to the "this is just like 1998 when Apple killed off the floppy drive" arguments when all Apple software (as well as other playable media like movies) disappears from store shelves. In the meantime, YOU'RE TOO EARLY!
The same is going to be true for legacy connections/ports. Apple is betting, as is Intel, that TB is going to be the solution for several legacy connections/ports and if they can fully support it through marketing, they're likely going to be right. It can do, with a single port, what it takes several ports to do now. Yes, there aren't the cords/connectors available to make this a reality today, cheaply and accessibly, but it will happen. Again, you have to start making the change or it will never happen.
That's not how the technology industry works. Things have to catch on before it is mass-adopted. Thunderbolt isn't going anywhere until it is in the hands of everyone, and much like your optical media assertions, we're not there yet. Unlike your optical media assertions, there's no guarantee that we'll even get there, given how costly Thunderbolt is of a proposition. It's a nice idea in theory, though.
13" MBA retails for $1600 with 4GB RAM and 256GB SSD.
For about $50, you can get 8GB RAM (4GB x 2) from most online retailers.
Apple charges $600 more for 512GB SSD (from 256GB).
So theoretically, Apple can charge $2250 for 13" MBA with 8GB RAM and 512GB SSD without significantly affecting margin.
So the real question is, can Apple build 15" MBA for $250 without significantly affecting margin? Similarly configured 11" MBA costs about $50 less than 13" MBA. While quad-core CPU and other components will certainly add to cost, $2500 is not exactly impossible.
Apple won't ever charge $50 for RAM. Also, your original post spoke of a quad-core CPU, which you won't see in the ULV form factor required by the MacBook Air anytime soon. Sorry to burst your bubble, but neither Apple nor the laws of physics work that way...yet.