I don't know about other games, but in Skial's TF2 servers you can purchase an item called "Credit Party" for 10000 credits that gives everyone +50 bonus credits every minute. It's a great idea, but when you do the math, 5 minutes feels too short. 5 minutes of +50 credits is 250 extra credits. For 10000 credits that doesn't seem like a very good value. I think the duration should be increased, maybe to something like 30 minutes. That way, everyone gets a decent amount of credits (1500), and a longer duration feels more like a "credit party". If nothing else, that would certainly make it worth the 10k buy-in.