I was talking about performance, true. But as I said, it's also about image. And in my eyes, Nvidia is an enthusiast company while AMD is not so much. Leadership always commands a premium. And this leadership is not only about performance, dev support, features, listening to the community and attitude in general. At least in opinion, their attitude puts them into 2nd place. All the fuss about their AF optimizations, no PhysX competition, saying microstuttering doesn't matter (read it in an AMD interview), Batmangate...I don't deny that Nvidia are all holy - they sure aren't. But at least they are doers while AMD are talkers. That is my impression.
To get around to my original point:
Be innovative, do more than you have to, support your enthusiast products properly and then you can raise prices and enjoy synergetic effects throughout your portfolio. There is a reason that the average Joe first points to Nvidia and then to AMD. And it's not that green looks better than red