For me it HAS to be ticket brokers. You could make a case for used car dealers...but I've had a few good experiences along with some really bad car buying experiences. Buying/selling tickets...there is never a good experience. What bugs me the most is when brokers from Massachusetts are buying up huge lots of tickets to concerts in Dallas just to make a buck. The only "plus side" is when you get tickets below face value and you know that the guy lost money on the deal. Sorry...just ranting for a few...