I remember Buddy Hackett's guns (Parker Repros?) being advertised for a long time above common market value. They lowered the price to about market/top of market and they disappeared from the web. Cabelas had some guns from a NASCAR driver a few years back. They tried to get above market, but I think they dropped prices to about top of the market.

The famous publishing giant "Pete" Peterson's guns brought wholesale prices, here in America, right in Southern California where he's most famous!

If it were John Wayne's collection of guns, some of which were used in movies, they'd bring a premium, I'm sure. Maybe even in England.