The Wii looks like a great console, Nintendo have done brilliantly with it in competition with Microsoft and Sony, I'd definitely recommend it for all ages. With regards to the addiction problem, it's growing big time and video games aren't just crack for kids, adults everywhere are getting addicted too (Maybe you could say it takes a childish mentality but I'm not so sure). Do a google search for "World of Warcraft Addicts". It's a massively multiplayer online game, basically an evolving world that, much like logging into a forum to post, you log in to play, real time, with people across the globe.
http://www.youtube.com/watch?v=K8hfK3RQs2g
The thing I don't get with this kid^ is why his mother hasn't just banned him from the computer or destroyed the DVD etc. He doesn't look to old to me, I'm not sure what her options are but it seems weird to invite a tv crew into your home, filming him playing it etc. Everyone there knows he has a serious problem, pull the plug right now.
I would never have been allowed to play any game to such an extreme. People need boundaries that they can work within, most can self impose these but some lose all sense of rationality. For instance, most games are, by their very nature, extremely addictive things (and of course, they're designed this way). The general idea is dividing a game up into small chunks that are finished in a small space of time and balancing this with long term goals that are achievable through these mini goals. The most addictive game I've ever played was a sports management simulator which was based upon a succession of individual games (the small chunks) and through games you of course, achieve long term success through winning competitions etc. World of Warcraft is a role playing game which is the classic example of an addictive game basis, completing small quests or "going hunting" for that little bit of experience which takes you up to the next level...oh, oh, but if I just get to that next level I'll be able to get that spell and then I'll be able to complete that quest and...
This is exactly why people play "for just one quick game" and end up playing for hours on end. The thing is though, most gamers are able to realise, with ease, when playing a game is becoming a problem, when they are in danger of spending a little too much time with it. Many gamers avoid World of Warcraft altogether because they know full well that they'll create an addiction. This is exactly why parents need to get tough! I really enjoy games, though I don't many these days, but if I had a child, I'd be very strict on this kind of thing.
http://www.wowdetox.com/