Another bit of psychology in relisting them over and over again is that he wears you down.

At first you're horrified by the price and think that you would never ever EVER buy that item at that price. But over time, if another one appears for auction and you lose the auction, or you miss it, his price starts to seem more reasonable.

After months of staring at it, eventually some folks weaken and hit the "Buy-It-Now" button. Then it's time for buyer's remorse, baby!