E.M.
wii fit stinks.
oh, the games are fun. but they're not anything you'd call a workout if you're under 50. But they tend to be under 2 minutes long - tough to get a workout if you have to stop every 2 minutes.
we do use it for a scale, since we don't actually own a scale. and we play the games to have fun but not if we're really wanting to work out.
that said, there are some GREAT wii games that will make you sweat. Just
Dance, Zumba, and Active Life Explorer are all lots of fun and make you move.
Have fun!