You should compare it to games like Wii Fit, with its 250k opening week sales, and epic legs, than any blockbuster game with 50% of the sales on the first week, other 45% on the first month, and 5% later.
Also, the 100 million comes from the billion different versions. The Sims 1 and The Sims 2 both sold in the 10millions area.








