Page Speed Service Home

Page Speed Service Home : even though all our website's data is cached in Google's hand, now google wants to officially ask for your permission to serve your pages' cache with their facilities, currently free for a subset of site, and will charges for $$ in the future. Does it really worth the $$ for the speed or you could do better on your own then Google? But there is a catch, will the service being blocked by some countries because it is by Google?