I bought a Wii yesterday. I wasn’t really planning to get one, but I was Christmas shopping at the Times Square Toys R Us, and they had a bunch of them, so I just picked one up. I figured that if I didn’t like it, it’d be easy enough to get rid of, either on eBay or to someone at work. I’ve only had a chance to play with it a bit today, but so far, I like it. The controller is pretty easy to use and intuitive under Wii Sports. I haven’t tried any other games yet.
This page at ComputerWorld has a good round-up of opinions on the Wii from around the web.