ya you can say tony hawk and guitar hero failed but this franchise is just getting way out of hand. Guitar Hero never dominated the top 10 of any of the systems and was only really really popular for 2 illiterations. Call of Duty completly dominates the top 10 of both the 360 and ps3. In the past 4 years call of duty has been growing more and more popular. I think the franchise will be selling 10mil total sales for a very long time but maybe it will die down a bit from the crazy sales it has now.