To Wii or not to Wii, that is the question...

We don't have one...yet. The last latest and greatest thing in the gaming department we purchased is the Nintendo 64 I bought for Brandon about 10 years ago. Obviously that was a time in life where he had more time! I have been happy that the kids like to do a variety of activities and haven't exactly invested our money in that area very much. But now, Tanner is getting older and has been to birthday parties and relatives houses this year where he has played the Wii and really enjoyed it. I like the family and physical aspect of the Wii system and all of the options it brings. I don't like the price and the price of the games. Is it worth it? Tanner has also mention that he likes the Didj system by Leapfrog. It looks pretty educational. Please feel free to share your opinion!