Yeah the casual gamer is still fine with their Wii, and don't understand what a Wii U is.
Hell it's been out for months and I still don't get the point of the system. Also casual gamers don't want two different models. Nintendo needs to have one model, make it $299 and have a game with it. Why would I spend $350 to play a Mario game that looks like the last New Super Mario Bros.? They should have waited a year and get some games going.
And if you haven't seen the leaked PS4 controller, Nintendo still have a chance!