Every auction has a genuine bargain or two amongst the lots, for the keen eyed. Psychology definitely comes into play - mostly in an unwillingness to be outdone by the other bidder, by the inexperienced or the collector suffering from terminal desire. It is all part of the fun of auctions really and there is an element of luck involved too. Private prices then start sneaking up towards the exorbitant ones paid in auction. Tbh so long as you buy good condition examples of rarities you will probably get your investment back in time.
"helplessly they stare at his tracks......."