So 150 gralats for an event, in my opinion, is a complete ripoff.
How about EVERYONE is able to participate free of charge but ALL losers MUST farm in a collective farm (of admins) just as a "fee" for participating in event? These gralats would obviously be locked and once the gralat fulfillment has been met (I'm thinking like 20), they are free to leave.
How's that?