Hey guys. I get the frustration with this issue...been there done that. However upon reflection, and with all due respect, doesn't it seem like our expectations of Apple may be a little bit unreasonable?
Apple did in fact repair iMacs with this issue under warranty and in my case after my AppleCare warranty had expired (see my previous posts).
NVIDIA no longer makes the GPU and there isn't a substitute. So I'm not sure what Apple's expected to do about it six years after the sale.
In fact I don't know of any manufacturer, Dell, Asus, Lenovo, Sony, that conducts business any differently. When a machine is out of warranty - ours are at least five years past - that's pretty much the end of their obligation. Even though in this case the GPU had been problematic, to expect any tech company to do something about it more than a half-decade later isn't practical IMHO.
The fact that we have more-or-less direct access to Apple is unique in the industry. Other manufacturers utilize authorized dealers (Apple does as well), but AFAIK the opportunity to walk into a Dell store and get someone to do anything but sell you a new computer doesn't exist. I feel very lucky that we have that option even when the answer we get may not be what we want to hear.
I blame Apple for setting such a high standard and in my book they do an order of magnitude better job of taking care of their customers than any other company, but this isn't an Apple issue any more than it would be a Sony issue.
Bottom line, computers become outdated and/or just wear out and they have to be replaced sooner or later. Apple computers in general last much longer than PC's. You can't give a six-year-old PC away, yet there are plenty of equivalent Macs for sale.
My wife's still using our '08 iMac. Not one thing outside of the GPU has failed. That's fairly astonishing to me. I just upgraded it to Yosemite. Knock on wood it'll last a little longer, but when the day comes that the lousy NVIDIA GPU (or pretty much any other part in it) fails, it'll be time to replace it. We have several local computer recyclers so hopefully some of the parts and pieces will keep someone else's iMac going for a little longer.
So I get it...it would be nice if everything worked perfectly and lasted forever. In my many decades of computer experience with just about every brand, Apple products are about as close to that ideal as it comes but no one is perfect.
Folkshave been predicting Apple's demise for one reason or another for over 30 years. Apple is the most valued company on the planet today. Never say never I suppose.
Sorry to hear that it didn't work out for you Mazzak. Switching back to a PC won't ever be an option for me, but best of luck with Windows 8! 😉
Enjoy your "new" iMac jwgish!
Cheers!