I think there can be situations of bidder collusion to suppress prices, but there also situations of two friends who pool together their funds to win a lot neither could afford on his own. There are also situations of "I have no interest in all 150 of the cards in the lot and wouldn't place a bid, but if you win it I'll buy from you the three cards I need to finish my set." I don't consider the latter two examples of collusion.
Last edited by drcy; 01-25-2015 at 08:24 PM.
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