i used to do gangbangs and they're not really a spectator sport. a lot of the men are wishing to remain discreet about attending them. it is true that organising gbs can be a nightmare in that to ensure a group of ,say, 10 you need to invite 20 to guarantee getting 10. however, you then run the risk of all 20 showing up! this rarely happens. no-shows are a real problem and i can only foresee this getting worse as everyone now has a camera phone. in addition to being apprehensive about their ability to perform in a group situation, the men will have the anxiety of being captured for posterity on someone else's camera!