Now that Nvidia has been forced to lower prices, both AMD and Nvidia are equal (IMO) on a price performance basis pretty much from top to bottom in their respective lineups (Titan doesn't count, its for researchers, not for gamers, not any more anyways).
So looking at beyond price and performance, Nvidia now has the better bundles if that matters to you (it doesn't matter to me, I don't care about those games). And then there's the future promised features, the only important ones being Mantle and G-Sync. I am a complete skeptic on Mantle, I think it'll be the next Glide, and unlikely that it will result in any meaningful difference in any game I'm going to play. But G-Sync will be awesome for every single game no matter who makes it. I'm betting on G-Sync, and if I were to upgrade my video card today, I would choose Nvidia, no question about it. Its a trump card for Nvidia and you can't even argue that their cards are overpriced any more, the decision is easy.