A lot of NVIDIA's money comes from the professional market, of which it enjoys about four-fifths of the entire market share. They won't be making a huge amount on the gaming cards. Yes, their drivers are better, but when was the last time that NVIDIA admitted to making a mistake? People with short memories may not remember when a whole slew of their mobile chips were dying. It might be me, but I'd rather have slightly iffy drivers than a dead card. Which reminds me... drivers causing fan issues on more than one occasion...
https://forums.geforce.com/default/topic/460837/geforce-drivers/major-with-new-drivers-with-my-9800gt-not-oc/
http://modcrash.com/nvidia-display-driver-damaging-gpus/
I'm not going to act like an AMD apologist and say that their coolers are good or anything - 95 degrees may be optimal but a better cooler wouldn't let you hit it at low clocks, nor should the fan need to spin loudly - but I think it's fair to say that both companies are messing up at times. AMD should've spent a little more on a better cooler, but those non-reference cards are making up for it. 95 degrees isn't horrible in an historical sense; check both companies' past records here.
Gsync is nice if you can afford to utilise it. 3 AAA games are nice too, but let's not forget that AMD was doing that recently and will most likely return to the same sort of deal in the near future. Is this 780 Ti worth the $100-150 premium? That's the question worth asking.