jlauro on 19 May 2008
It's been over 20 weeks of wii fit in Japan, and the attach rate for wiifit to new wii is selling at about 75% (and the average is already over 30%). Given that it's already exceeded 30% in Japan, and new wiis come with a 75% attach rate, I wouldn't consider 40% that unrealistic. I would expect higher attach rates in the US than in Japan.
