Okay, so in summary you think I am out to lunch.
Yes. I think you're actually out to lunch. Why?
You miss a very key principle when it comes to buying computers:
Time = Money and Money = Time.
The more money you put into a computer, the more time will pass before you buy a new one.
Albeit, the ratio is never exact; some expenditures give you a better bang for buck for time than others do. For example, the differences between the iPad 2 and the third generation iPad under the hood are minimal compared to the differences between the first generation iPad and the iPad 2 or the third generation and the fourth generation.
Where you are completely out to lunch is that you don't at all grasp the significance of the $200 difference between the entry level iMac and the now-current-middle-level iMac. Because if you think, for anyone's uses, that the current entry level 21.5" iMac can last nine years, then I want whatever you're imbibing.
You are only factoring that the OP has basic needs and that surely an entry level product from Apple would satisfy a vast majority of users that use only the very basics, and that is a very dangerous assumption to make. Take it from someone who has worked with computers for decades and does computer consulting on the regular. It's got nothing to do with power they don't need today, because that's the wrong way to look at it. It has everything to do with how long that machine will last before he discards it and how much TIME you get for $200. More than ANY other $200 difference in models of the same kind of Mac, the difference is HUGE.
You cannot deny that with any modicum of practical sense or logic, I'm sorry.
I think I am more in touch with what this guy needs than you give me credit for. Consider this: he is only now looking to upgrade a machine that is nine years old.
Yes and you are definitely out to lunch if you think that a lower-end iMac, running with everything that makes a MacBook Air slower than every kind of Mac (the ultrabook CPU), RAM you cannot service or upgrade (and yes, I know what goes into upgrading RAM on a current mid-high-end model 21.5" iMac) minus the things that offset that (super-fast solid-state drives). Hell, you can't even upgrade the RAM on that thing to 16GB AT THE TIME OF PURCHASE, and that definitely can and will effect how long the machine can be useful for.
Let's compare the base model with the next one up for 200 bucks more:
You get the following for the added money:
1.)2.7GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.2GHz) with 4MB L3 cache vs. 1.4GHz dual-core Intel Core i5 processor (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache.
Dude, this is key. This is a HUGE difference. First off the Cache difference is huge. Secondly, Ultrabook Haswell at 1.4GHz with 2 cores vs. notebook Haswell at 2.7GHz with 4 cores; we might as well be talking about an iMac from 2010 and a TON of things have changed in CPUs since 2010.
2.) 1TB (5400-rpm) hard drive vs. 500GB (5400-rpm) hard drive
I agree with you that this is a minor difference, especially in low-needs situations; however, at least the hard drive in the higher-end Mac is offset by all of the other components being at least somewhat decent. In the case of the low-end iMac, it's lagging like an old dog out of the gate.
3.) Intel Iris Pro Graphics vs. Intel HD Graphics 5000
Iris Pro (Intel HD 5200) is nothing to shake a stick at. Sure, Intel HD 5000 is probably more than enough for that person for today.
However, let's not forget that Apple routinely (with every OS update dating back to 10.4 Tiger) puts in enhancements that take advantage of the GPU. OpenCL, CoreAnimation, CoreImage, and so forth. Often times, these are features that eventually become required by third party software and become the basis of Apple cutting out support for older models. No support for older models means that it's only a matter of time before basic functions lose viability on that older hardware. Again, Time = Money and Money = Time.
Otherwise, it is pretty much the same computer. Are these upgrades worthwhile for $200.? Sure, if you have the money and are willing to spend it on this. Are they necessary to get say, 5 years out of this system for office apps and web browsing, You Tube, etc.? No, I disagree. For example, would you tell me a current MBA is a waste of money and won't last 5 years?
Do you know anyone still rocking a 2009 MacBook Air? Me neither.
Also, you weren't saying 5 years. You were boasting the 9 years that the OP got from his last system. I do think that this machine, if the OP uses it for the VERY basics, could last 5 years. But I don't think it'd be likely. Nor do I think the OP would enjoy the experience all that much and after all that much time. 500GB seems ample, but even with basic media, that can fill quickly. Plus that drive's slow speed, with a slow CPU to process data, that's going to lead to a lot of spinning beach balling. So yeah, I don't think it'll be an enjoyable experience and I believe that it would be that way sooner than you think.
Let's look at one selling for the same price as the entry level iMac:
11.6-inch (diagonal) LED-backlit glossy widescreen display (smaller than iMac)
256GB PCIe-based flash storage (much faster but half the capacity than iMac)
1.4GHz dual-core Intel Core i5 (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache (SAME CPU - does this make an MBA a bad value?)
4GB of 1600MHz LPDDR3 onboard memory (Half the memory of the iMac)
Intel HD Graphics 5000 (Same both systems)
It's technically a better value because:
- It's a laptop!
- Given the above, it includes an integrated keyboard, LED-backlit LCD display, glass, multi-touch trackpad
- Therefore it has a battery with some pretty advanced battery technology!
- Also, SSDs are pricey, let alone PCIe ones!
In fact, the fact that you have these two machines at the same price where the only serious technical advantage is the 21.5" display of the iMac (and mind you, these days, it's REALLY NOT that hard to find 21.5" monitors with the exact same technical display specs of that iMac for super cheap), so that's really not all that advantageous anyway! So yes, when you compare those two machines, the low-end iMac is still a crap deal.
Again, how do you refute that?
Of course, the MBA offers portability. Personally, I think it is an awesome computer with that in mind. I also don't think it is a terrible value or that it will be useless in two to three years if all you are doing is using office apps and browsing the web, using email, etc. For basic tasks on the go this is a great machine and I don't know why you couldn't get 5 years out of it. I think the same about the desktop iMac for somebody who wants the least expensive Apple desktop, it's a fine computer for basic tasks and ought to last someone 5 years I would think. Not everybody is on a 3 year upgrade cycle nor do they need to be.
Look, I'm on a 5-6 year upgrade cycle with my Macs. My Mac of choice is a 15" MacBook Pro. I last got one in 2012, I do not need to even think about replacing it until 2017. Before that, I had a 20" iMac from Early 2006 (the first Core Duo Macs that kicked off the Intel Transition), that lasted me about 5 years. That was the 2006 equivalent of a decked out 27" iMac. Similarly, what I got in 2012 was the maxed out version of the last non-retina-laden 15" MacBook Pro. These are higher-end Macs. That's why they last so long.
The thing you don't get is that neither Apple nor third party developers who code for OS X are doing anything to slow down the advancement of the minimum system requirements for software. They are able to continue innovating with the underlying foundations of their software because they are able to push out new hardware on which to run it on and are good about getting their customers to upgrade in order to run it more optimally. At some point Apple may mandate that a machine needs a quad-core processor or 16GB of RAM to run a future version of its Mac operating system. At that point, a soldered on 8GB of RAM won't help, nor will a dual-core ultrabook CPU. You may think that time is 5 years down the road. It is not. It'll be here much sooner than that. But even if it isn't, it's not like that day won't be inevitable, at which point, $200 gets you past an inevitable cut-off and will still make the computer last longer than it would otherwise; therefore making it a smart use of money no matter how you slice it. Again, I'm not sure how you can be impervious to that kind of reasoning.