[mrreality68]

Every item is different depending on the demand
Most auctions are long. So the first day or so everyone gets in an initial bid knowing the action really starts at the end. So then there is many days or weeks of a lull with an occasional bid or so for others getting in. Then on the last day or so more people get bids in or tries to position themselves. In extended bidding depending on the item and how high it went up in the beginning the bids often soar to whatever the market is set that night by a few potentially eager bidders.

In the end recently most items seem to go higher than most bidder thought they would and more then most collectors are willing to pay but someone does

At times if you lucky you can get a bargain but recently it does not seem that way and we have to step up to get what we want if we want it badly enough