Honestly, wouldn't this have made more sense to give out four copies to four different people (why would one person need two keys? Plus, from a marketing standpoint, it would have been better to target more pilots)? Secondly, it would have been really easy to log into the VATSIM statistics database, filter the event times when people were flying into MEM (didn't think flying out counted based on how this initially read, hence the reason a number of us flew in rather than out), and then randomly select 4 people from that list. This would have made far more sense and should have happened after the event was over and then results posted on the forum so people weren't left in the dark.
Just some food for thought... for future reference.