No offense, man, but I don't think most grown gamers actually care about the Wii U.
I have a Wii and I haven't touched it since the end of 2011. I don't find Mario games all that entertaining anymore.
I used to just buy all the Mario games because I grew up on them, but as I've gotten older, all I have realized is that the Nintendo market is over saturated with his games. Nintendo just releases any Mario game they make just for profit.
I'd rather own an XBox than a Wii U. Yeah, I said, "XBox." Not the 360 or the One. Just the plain, old first-gen XBox.