Need some advice. I want to get a game console for my wife and kids for Mother's Day. We don't have anything currently. The last time I bought a game system was the N64 (no crap). I'm not a huge gamer, my wife isn't, and we don't really want our kids doing this much, either. But I want to get them a few of those motion dancing/sports games they can play together. They had a blast doing some dancing game on a friend's old wii a few weeks ago. So that's what I'm going for. I'm not looking for cutting edge - in fact I'd probably rather avoid it. I'm looking for easy to use, relatively inexpensive, good for motion, and good for wives and young kids.
With that in mind, what would you recommend? I was thinking a Wii U? Plus a dancing game, sports game, and maybe MarioCart? Does a Wii U come with the motion stuff, or is that extra?