First the goal when bidding on Ebay is to pay the lowest price. Not your maximum. Second, there are a lot of people on Ebay who only bid the minimum bid increment. Let's say an item's current bid is $10 and you are willing to pay $30. So you bid $30 but Ebay only bids the next increment over $10 for you. You are the current high bidder at $11. Another bidder comes along and bids $12. They are instantly out bid by you. Price now at $13. So they bid $14 and are again instantly out bid. And on and on it goes until you are bid up to your maximum or close to it.. If you hadn't bid your maximum early that person would have stopped at their first bid. And you could snipe bid at the end of the auction with your $30 maximum yet only paid $14 or $15 for the item. This is just one strategy for bidding on Ebay. There are others.