Nintendo Wii and Wii Fit

Wondering if anyone owns one of these and uses it regularly? I have been wanting one, know someone who has one and uses it quite often. I see so many on Ebay at various prices, seems to me like something all of them bought and they all got lazy and quit using them. I would love to have the Wii with the game that has bowling and tennis on it. Are these worth the money they cost or they just another dust collector? I would gather from all that I saw for sale on Ebay it is the latter. If they are popular, what are some of the good games that you can get for them? I will be interested in people's opinions of these.

I think Wrobert got one or was looking at them last year.

Some of the ones on Ebay were near $400.00 but were the full setup, not just the game system alone. Would love to have that for Xmas.

I got a dance, dance revolution pad for the 360, but I danced and sat down I didn't have the energy for a revolution of dance. I'm hoping to in the future.