I would agree RE:UC is a bit high. Again, buying a game + perpherial might dissuade some people from buying *that* many units.
Also, I know everyone is saying "oh, 2m Japanese people bought Wii Sports, they'll buy Fit too" - as true as that may be, Sports was half the price of Fit. That can be a huge thing no one is talking up.
I'm not saying it'll sell poorly, but most likely, it'll sell like Guitar Hero, at best. Decent beginning, and ultra long legs like a Brain Training-type game.
Back from the dead, I'm afraid.