What are you talking about? I can't tell if you were being sarcastic with the post I quoted now...
Yes, Just Dance is a quality game, and I'm glad of the support. Do you know what else sold millions? Core games like Mario Galaxy, Zelda Twilight Princess, Resident Evil 4 (and updated port) etc. etc.
Nobody here is demanding that third parties stop making games for the expanded audience, though they'd be smarter to not think of them as idiots, but there's still a huge audience of core or lapsed gamers on the Wii who are looking for more than mini game collections etc.
A game I'm developing with some friends:
www.xnagg.com/zombieasteroids/publish.htm
It is largely a technical exercise but feedback is appreciated.