Yeah. I gave 50 bucks for my first p30 (I traded a j-22 that I gave 50 for actually) . No one wanted them because the company was gone and no mags or parts existed AMD 22 mag costed too much....and they are junk.
I have a few of the 5mm remingtons no one wanted throughout the years because no ammo was made. Some even came from auctions. Never gave more than 75 dollars for one I dont think. Centurion started making ammo few years back so someone somewhere likes them, although they only bring a little more now.
I had a friend in the 90s offer me an inherited good condition Smith model 53 (iirc) in 22 jet for 150 dollars. Id never seen or heard of one. Sadly I loaned him the 150 because I didn't want to take the gun from him, (knowing I'd never get all my 150 back. Lol) and thought he would keep it. Bastard put it on a 150 dollar punch board though. If I'd known he didnt want the gun I'd have taken it.
I gave less for my bren than magazines currently sell for now. And all those were sold because some people wont have a gun they are afraid to use. Others wont have a gun they aren't afraid to use. I used to help a retired professor at his old homeplace near my house when he would come down, that collected old colts. Told me he hadnt fired any gun in 30 years. Nothing wrong with either. ..I'm somewhere between the two.
I dont regret any of them. They are conversation starters. Pondering why they failed, what they brought to the table. Just like that p30. It was a huge failure. But the same gun re-released 25 years later was a success. The bren ten...wasnt anything special, yet today companies are still wanting to resurrect it when better guns are made imo. Then the 22 jet...makes you wonder why the problems with the cartridge jamming up the cylinder weren't found by the company before release.
I have guns to shoot a lot, and I dont Care to get the ones mentioned above out when someone asks to use one, not like they were unfired or fragile, but they certainly wont be shot much. I get the feeling the op knew the gun was a liability as a shooter but was interested as a collector/ historian kind of deal.
But all that said I certainly never gave much for one. I bought them all for less than a cheap shooter at the time would have costed because they were no good to shoot, either because of flaws or lack of interest, or no ammo availability. (Or a combination).