I freely admit to being stupid when it comes to guns I have bought NIB and let go for something I couldn't live without. I still have a Mdl. 18 (1967-$72) and a Mdl. 36 (1970?-$110), but over the years I have let go a Mdl.27, a Mdl.29 and two Mdl. 19's. I have replaced a couple of them, but the replacements belonged to someone else first. Buying and selling/trading guns over the last 50 years, I have made some bad decisions. But who knew some would become rare, extinct or valuable.