I remember seeing a penny auction for an iMac sell for 236 dollars. At .60 a bid, that's $14,160 in revenue, or 12k profit. Absolute insanity. That being said, I think they've hit a critical mass. What will probably end up happening is that those that buy bids realize that they're buying overpriced lotto tickets, and bore of the game. But there will always be more fools to the fire.