I've loved Nintendo games since I was very young, and since a few years I got my hands on a N64. However I must say I was neither impressed with the DSi or 3DS (nothing much better than the NDS, which at the time was of course a great handheld console (especially the lite version)), and only in the beginning was I a fan of the Nintendo Wii. The games on this system though have been poor so far, there is none I would consider buying the system for. The Wii U looks like nothing much different from the previous, though I'm very glad they're finally going for HD (honestly, graphics are a big deal in this era).
I guess I'm simply oldschool. I played on a NES recently, and was wondering why I just haven't been able to have as much fun on a Wii. I can understand that the sales are going down, which is sad for a great company as Nintendo, founder of so many awesome games. In any case, I hope the Wii U is better than I imagined initially and that I might even get it eventually. Ehh.. And for now I hope they can come up with another kind of console.