This is always pretty much always going to be the case with auctions. I sell a few things on eBay, not records, and recently I got more for a second hand item than a new one would have cost and the item is freely available. As a seller it's great news because there are buyers who are so desperate to own something they rightly or wrongly go OTT with their bidding amounts.
Whenever I bid at any auction I have a self imposed limit that I will not go above under any circumstances, right now particularly with records, there are lots of people who just want it regardless of price.
Where I really struggle is that some people think a high auction sale price for a record means that it is instantly worth that and they reflect that auction price in their fixed price sales.