You're right. I know a guy who was a real estate agent who would put down an offer on a house with a 30 day out and then he had the house locked in and put it on the market for 30 days to try and flip it. If it flipped he made money and if not he paid a piddly sum and walked. Happens in many venues for people who know the loopholes but the domain industry is relatively small and in my experience you can only piss people off so long until everyone knows who you are and what you do. The most valuable thing you have is your reputation and losing it for a few bucks is beyond short sighted.