Wii Fit attach rate in Japan is 31.5% and climbing. Given the longevity of similar titles and the fact that such a massive attach rate is sure to draw more software for the balance board, I don't expect this number to drop below 25% for the lifetime of the platform.
And I think that 25% attach rate is achievable world wide. Consider that the Wii is expected to have a LTD of 40-50 million units by the end of '08. I think that the only reason Wii Fit might not sell 10 million units by the end of '08 is because I don't think Nintendo can make them that fast.
I'll admit, this is an optimistic prediction. ;)
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.
