It's really not a bad price for everything that happens at one of these things. Each band except the ones on the Main Stage and the closing band for the secondary stages segment (the stages switch for each band. 1 stage plays while the other sets up) holds a meet and greet before and after their shows (I met Shadows Fall at this past Mayhem Fest, got a pic with the singer AND a big poster with the entire band's autographs). The food/drinks there are expensive as fuck, but there's a water tent so we normally don't eat anything during the show itself.
Plus....metal booth babes.