AMD cards can't do PhysX, FSAA, are plagued by continuous driver problems & compatibility issues with certain games. That is why I don't buy them its simple common sense really I'm struggling to see why you're so confused by the concept of someone who pays a lot of money for something would want it to work properly.
*shrugs*
It's because your reasoning is utterly flawed. I'm not a fanboy, I just won't touch AMD cards, I pay more because they have a proven track record and I go by proven technology, etc, etc.
Nvidia have PROVEN worse problems than AMD in terms of reliability, over the past three years Nvidia has been hit by bumpgate and what, 2 or 3 seperate drivers which have caused various cards to overheat and burn themselves up. 590gtx's had problems with blowing themselves up and drivers limited them even further than they were already stunted at stock.
This is the problem, you claim you stick with them and refer to AMD as
Still anythings better than an AMD/ATI/Radeon whatever you want to call it, buying one of those things does not compute lol.
Everything you've said comes across as nothing but fanboyism, yet you put in the generic "I'm not X but here's a statement where I come across as nothing but X" internet argument.
"I'm not a fanboy, but I wouldn't touch AMD with a bargepole"
"I'm not a racist, I just blame everything on black people", two very very common arguments on these forums.
AMD can't do physx, physx sucks, its used primarily as an excuse to hurt AMD rather than improve the experience for Nvidia users and more often than not hurts framerate to stupid levels for Nvidia users. FSAA, AMD can't do it, ok, constant driver problems, can't remember the last one I had, other users have problems, plenty of people have problems with Nvidia drivers. The biggest few problems in drivers of late and for the last few years would be, drivers KILLING cards, that would be Nvidia, and of late the TDR issue, another Nvidia problem that has taken ages to resolve, hit thousands of users and made the cards half useless for their owners.
The problem is, when you claim to NOT be a fanboy, then spout of incorrect info, blindly ignore all Nvidia problems and claim you would never use AMD, its pretty obvious that you are in fact a fanboy.