Shit, I guess I'm not doing too bad. Surely better than Edelweiss!!!
I guess my worst fuckup was selling off the AK's I had. I had a Norinco NHM 91 with the long "NM" barrel. More like a nice RPK. Had a couple drums, some 40's and a shitload of 30's too. I also let go of a Steyr barreled Arsenal AK, one of the best ever made. It was actually a nice rifle by any standards, smooth action and accurate barrel. Then I also got rid of an AK74 along with a shitload of mags, stripper clips, parts and other stuff.
I didn't lose out on any of those sales. I sold 'em for about what I paid. But today they're worth 5x or more and I don't even own an AK. Just a shitload of AR's and an FAL. I also wish I hadn't sold that Remington 700 PSS .300WinMag... It wasn't anything special but it was pretty nice and it went to a good home, some SF guy in Texas. The AK's were all sold to guys in the barracks and I got the whole damn company into buying personal weapons, so I guess good did come of it.
Most of those guys are still big into firearms today and they have much nicer shit now.