Heck, as little as 3 years ago you could get a Chinese T53 Mosin carbine and a tin of ammo, out the door for $200. Now good luck even finding surplus x54R. But yeah, it's always a gamble to see what is going to increase in value and what isn't
I traded a Ruger LC9 with extra mag and all that came with it for a 2000 production year Department of Corrections California trade in about 3 yrs ago. I figure the drive to Indy and the LC9 I had 400 in it. Now I see 3913 selling for around 450.
If anyone has a S&W 908 and needs a parts kit with slide and barrel let me know. I have a lead.