I've found that winning on ebay is a game. If you really want something you almost have to find an ending time that's in the middle of the night (even on the west coast), stay up and then bid in the final minutes. That action is preceded by watching previous auctions to see what's a reasonable price to pay. There are also certain times when bidding is slower than others. July4th evening might be such a time.
As others have noted there are all kinds of tricks used to drive up a price and perhaps even the desirability of an item. Sometimes it works, sometimes not. Good luck,