My paintguns are, for all intents and purposes, unsellable. I mean, sure, I could fire-sale them for the purpose of getting them out of the house, but I don't want to do that, and since I actually like my guns and want to keep them, it's OK, but I've got a non-milsim modded Custom Pro, a "no-name" FASOR electro (it's a Diablo Wrath LTD but I don't think those have been sold for years), and a Sniper II on an uncut full-size '98 body. Nothing collectible, nothing particularly rare.
