Sniping is the only rational way to big on eBay. You bid a single time, with the absolute maximum you would go for, and put it in the last 10 seconds. It preven

Sniping is the only rational way to big on eBay. You bid a single time, with the absolute maximum you would go for, and put it in the last 10 seconds. It prevents both you and your opponents from raising the price irrationally. Automatic bidding just encourages prices to go up, based on emotion. Sniping in the last few seconds removes the emotional component.