Reading the posts here and through my history, I conclude the coupon brokers are mostly honest and it's the airlines that are the cheaters. The airlines will make your travels miserable and expensive. They will try to take take as much money out of your pocket as they can. When you need a ticket to get to a funeral or emergency, they will sock it to your pocketbook. When you get enough miles for an award, they will up the amount you need. Using brokers are one way to stick it to them. The airlines already made the money for selling the miles. They want to also tell you how and who you can transfer it to. They are miserable creatures. Although I never sold any miles, I fully support this situation.