I just got a Wii late last year, and I thought I'd revive this old message thread.
It has some functions that I don't really use - like the photoshop channel and the message board - I use a computer for those kinds of things. Nevertheless, I'm quite impressed with what it can do. I like the how once you connect it to the internet you can play certain games with people in different parts of the world. And I also like how you can play games from older systems on it. True, you have to pay some extra money to do that, but it's not all that expensive. And a single 1 GB SD memory card (added to the Wii system memory) is enough to hold almost all the games you'll ever want. So yeah, costs a bit to start getting things set up on the Wii system, but nevertheless I'm quite pleased with it thus far.