Yeah, perks would be cool. Personnally I'd review more if there were also other reviewers reviewing (otherwise it kind've defeats the point), we got to have (small) images under our name, and got to have custom statuses and nifty stuff like that. Perhaps other bonuses like being able to give "brownie points" that add up and show up on the front page where it shows all the levels (or maybe even a script were all of the "advanced reviewers'" ratings were averaged and put alongside the real rating).