I'd say that the days of cheap and collectible 3rd Gens are over, but shooter grade bargains are out there if you're patient.
In March, I bought a very nice 3913LS for short money. No box, one magazine. It was carried very little, if at all. Last month, I bought a 5946 from the same person. I let him keep the magazines as I have plenty and he has other guns that use them. Same thing, no box. Not collector grade, but not beat to hell either.
Last year before we moved, I sold my pre rail 3953TSW ANIB with two magazines for the same price that I bought it in 2017. Which surprised me as I thought it would have more value based on condition and scarcity. Which just tells me that a lot of "luck" is involved in selling collectible guns.
In March, I bought a very nice 3913LS for short money. No box, one magazine. It was carried very little, if at all. Last month, I bought a 5946 from the same person. I let him keep the magazines as I have plenty and he has other guns that use them. Same thing, no box. Not collector grade, but not beat to hell either.
Last year before we moved, I sold my pre rail 3953TSW ANIB with two magazines for the same price that I bought it in 2017. Which surprised me as I thought it would have more value based on condition and scarcity. Which just tells me that a lot of "luck" is involved in selling collectible guns.
The days of cheap 3rd Gens are over for the most part. The supply of cheap police surplus hitting the market has dried up. GunTubers through their channels have hyped up the collectability of these guns. Shooters are tried of polymer framed striker fired 9mms. Stainless steel hammer fired DA/SA is now the esoteric hipster cool thing to have at the range for fun. Plus, nostalgia is a hell of a drug. People who came of age in the 1990s, recall seeing 'em in cops' holsters and on the Big and small screen. Now that they're older and have disposable income. They're scratching that nostalgia vice with the guns of yesteryear.
The same is continuing to happen to revolvers and also pre-2000 era hunting rifles like Remington 7600s and push feed post '64 Winchester 70s. And we've all seen the craze with lever-actions.
In the end, shooters are tried of GLOCKs (and their clones) plus AR builds.