As I have been reading the reviews and experiences with the wii posted on the net, I have gotten more excited about one aspect that I have not really heard anyone talk about:
I have a 12 year old son who plays video games constantly and really likes for me to watch him play. Because our taste in games is a little different, I have to say that most of the time I put it off or I just sit around bored for 15 minutes then make an excuse to do something else. One of the things that I have noticed the most is that the "experiences" with the wii are often centered around several people, and the people NOT playing seem to have alot of fun just watching those that are. As a matter of fact, I can see my wife (who, up until I got a DS Lite, didn't like video games but now is a Brain Age addict) actually not getting annoyed with watching us play when we hook it up to the big TV w/surround sound (and maybe even joining in). I think that this is an extremely important factor in pulling in the non-gamers - not by convincing them to play, but with them actually enjoying watching YOU play (not necessarily your character in the game) and wanting to join in (because they are watching the person as much as the screen).
BTW - I am getting it for myself for my 40th birthday (mid-life crisis anyone?)