I could see an issue with that since most people are going to be going to events in a group, and won't want to go unless everyone gets their ticket. If I wanted to go with three people, do you lottery us as a group or individually? If I want to go with 5 people and there's a lottery, the best thing to do would be have multiple people buy 5 tickets each, multiply that by every group and you have a lot of people buying tickets who don't actully want them and people who only put one order in get shafted