How many 10mill+ sellers will each console get in 2009?

[Legend11]

Fastrabbit09 said:

Legend11 said: Basically by my estimates the system would have to sell at least 35 million units in Japan to move 10 million copies of Wii Sports.

what kind of estimates are u coming up with?

currently wii sports sells at a 53% attach rate, so it will take less than 20 million wiis to hit 10 million wii sports sold

 

It's attachment rate is slowly going down.  Take a look at Japan's numbers for the last week of February.  Wii Sports sold ~15,992 units while ~65,116 Wiis were sold.  That gives a 24.6% attachment rate (for the Wiis sold that week).  The game is 7,157,966 away from 10,000,000 and I used to assumption that the game's weekly attachment rate will slowly go down over the years.