But only one bidder has bid $26 and only 2 have bid $25.50, so with 15 bundles available why can't I bid $25.50 and be one of the top 4 bidders? If the bidder bidding $26 was bidding for all 15 bundles, or the $26 bidder and the 2 $25.50 bidders combined were bidding for all 15 bundles I would understand the need to bid $26, but that is not the case here.