Quite alot people overpay during an auction. Bidding is a way of finding a price based on request, not on value, by setting a minimum amount of "what you really want in exchange".
Most teams are not searching for the top return-on-investment, but are so focused on a guy they keep exceeding their limits only to get him. That´s not the exact definition on getting the desired object for the cheapest possible price.
Zwei Dinge sind unendlich, die Dummheit und das All...