Owning, buying, trading, and selling guns is a funny thing.
Take the Swamp Dragon for example. It has a .54 ball barrel and a .50 fast twist. It will soon have a .45 fast twist and probably a .58 ball barrel.
So a few nights ago I got to thinking "maybe I'll sell the Sinful Sisters. After all, they just duplicate the Dragon's various barrels". Then I asked myself, "ARE YOU INSANE???"