I wouldn't touch this "game" with someone else's Wii. The whole thing seems half baked and stupid.
That is what most of people said about Nintendo DS, Nintendo Wii, Animal Crossing, Wii Fit, etc before they came out.
Guess what? They all turned out to be either great and sold millions or decent and still sold millions

Hmm, as a DS owner, Wii Owner, Animal Crossing owner, and Wii Fit owner I know. You're preaching to the choir there; I enjoy those games/systems and see their value. They didn't come across as half baked ideas. I never said this game wouldn't sell. In fact I expect it to sell hojillions of copies. I just don't see the value in the software. I do not see this being worth $50. Look, the MTV blog write up makes it seem more interesting, the 1up.com review gave some insight, and the IGN review is a good counter point. I would've liked to see two things added to this software, a skill mode that actually makes you have good rythym and timing etc. for those who want something more than just jamming out and making videos, and more music that's not from the public domain. People get upset over the poor value of "horse armor" downloads, and those same people should be peeved that Nintendo is selling you a music game with public domain music on it and barely anything relevant in terms of songs.
Also, as a supporter of Nintendo I expect more from them. I'm kinda bugged that we are getting Wii Music but we're not getting Disaster Day of Crisis, while Europe and Japan get both. I want to see a better effort all around.