Wii fit is a monster. It will probably end up with a 35% attach rate. Only the PS3 and Wii play look as though they can hold it off from outselling them.
95% of gamers don't know they are noobs, the 5% who do won't be noobs for long
Check out my kickstarter project: http://kck.st/15CEuUT
Check out my blog: http://www.metropolisgaming.com