In auctions where bidders take turns bidding, the seller can make more money if there is one strong bidder and one weak bidder. The strong bidder goes first, and this can lead to higher revenue compared to when both bidders bid at the same time. The weak bidder also gets a better deal in this type of auction. So, if a seller wants to make more money with uneven bidders, it's better to have them bid one after the other instead of at the same time.