If you enter your maximum bid in ebay you're revealing it. With sniping no one can discover your maximum bid.
The 'nibblers' will invariably show up and bid small amounts until they exceed your maximum bid, while not revealing theirs.
It's a second price auction. Who cares what their limit is. If it's more than the value of the item to you then they will win. Otherwise you will win.
It's a second price auction. Who cares what their limit is. If it's more than the value of the item to you then they will win. Otherwise you will win.