I'm with Shingi in that I don't mind the Wii U being primarily a console for Nintendo, indie, and select Japanese games. If a new Assassin's Creed or other big third party title comes out, I'd rather play it on a more powerful system anyway. With Steam, prices drop fast, and even a modest PC can play games at a higher resolution, with a better frame rate, and with better effects than current consoles.
I don't mean to argue that the Wii U is too weak, but rather that it does not need to be the ultimate console, getting every game, to be worthwhile. As with the Wii, it will probably be a great console with a very different library than the competitors.