I never get picked ;-; I dont even have the hats (sometimes) yet i still dont get in. To be honest i think you should earn getting into the event by finding that damn warper and seriously, what does it matter if you have the same hat? because the only event i have seen in the past 2 months is chance x.x
Besides some people might not even play for the hats (doubt it), but maybe they already have the hat and want to do it for fun.