I would remind you all that Gunbroker is an auction site. Often overly high priced items go unsold, and sometimes the price is driven up by bidding wars between just a handful of people.
The trouble is, that once some gun sells for $XXX, no matter what artificial conditions got the price that high, the rest of the sellers think, and act like every gun of that type (no matter variation or condition) is now "worth" at least that much!!
It's not a new thing, it just hits some guns later than others, or people don't really notice it, until it is done to a gun they are interested in.
Saw a guy doing that once, sort of. Long time back, now. Was at a show, and a seller was in the middle of adding $100 to the price of everything he had that said Winchester on it. From old collectable lever guns, to brand new unfired in the box, he was bumping the price up $100 on all of them, because Winchester had just announced they were closing the factory.
"Winchester's goin out of business, so now, these are all gonna be COLLECTIBLES!!" was his reasoning.
Offered to make me a deal, sell me the 9410 I had been casually looking at, for the "old" price...(which was stupidly high already)...I passed.