You either like 21's or not, the man did not ask for our opinion of the merits of 21's verses any other guns. His question was what is a decent or normal price to pay for a 21 like he found. I have three 21's and am no expert but 3500 is not out of line for what he is describing. Most have asking prices much higher and they will be for sale for a long time at their inflated prices.

If one is found for 3000 then buy it as fast as you can but 3500 for one is about what I would expect to pay. They just command more bucks than people expect. A high condition one or one in a small gauge will bring way more than that. Because there are so many upgrades out there I would refrain from buying any higher grades.

Just like all pre 64 Winchester and most Browning superposed command a premium the 21's have a big following of collectors and those who just want one as a shooter. That is a lot of demand by buyers.