I wouldn't mind owning a 21 but I wouldn't pay what they bring.

18 years ago I crossed paths with a 21 collector who was noted for been a very close relative of Ned Schwing. I had a nice straight grip Parker CHE 20 he looked over and declared he would never want it over any 21. I took a look at his 21 and told him we could be good friends as there was no chance we would ever compete for the same gun.