Haven't you ever bid on an item where someone may have outbid you by a dollar or two and you have said to yourself, I'm in this far, why should I lose it for another dollar or two ?

Well, Robert... that's why I began tracking auctions in the first place. I'm always bidding at the level I want and the only time I have regrets are on those pieces that rarely come up for auction and which I might not be able to buy for auction prices from dealers. For most chips, there will be another coming along soon on ebay!