Ok, this is going to come off as an avid fanboy \ salesman, but now that my daughter bought herself a Wii U and I have seen it in action, it is a completely underrated console. It's a lot more than a Wii with a tablet. It supports external USB storage, HD graphics, backwards compatible with Wii, and it controls the TV and the DirecTV receiver. That's only the things I have actually seen it do. Also, using the tablet when gaming is much more natural than I ever thought possible.
It is a really good console that Nintendo has done a TERRIBLE job of marketing.