@HankBuck what you are describing is provenance and infamy. I've found that if you buy fine guns and dig deep enough, provenance is dime a dozen and ubiquitous. Some examples of no-value differentials I've owned:
-The Nawab of Rampur's best 20bore auto-opening, single selective trigger, ejector. Its value was as a best gun. Naturally, anyone that could have afforded it new would be of similar financial stature.
-Elliot Richardson's Beretta 12 bore. Held more cabinet posts than any person in US history. The gun was still worth just $3000.
-Le Marchant's take-down 318 WR. Its a novelty that I have pictures of me hunting on safari at the fort he was stationed with that gun more than a century earlier. It's still just a 318 takedown.
Amateur collectors often get starstruck by provenance not realizing it is everywhere.
The other scenario is infamy. The buyers of these pieces may not even be "gun or fine art collectors" at all. Patton's revolvers, JWB's pistol that killed Lincoln, an oil on canvas created by Hitler, etc. The quality or value of the object itself is a rounding error of zero whereas the infamy or historical significance is literally the entirety of the story. For this reason, condition hardly matters at all, its all about the story. Not to be macabre, but I assure you if the sawed up, then buried and rusty remains of the gun Hemmingway killed himself with would be worth 6-7 figures, even though the object itself would be otherwise worthless.
So ignoring the first category of provenance which I've established matters little to none, and acknowledging history and infamy is the entirety of the value in the latter cases, we're back to the two collector mindsets I initially described in a prior post.
My concern amongst friends and neighbors like all the folks on AH, is that the "collectibles" in mint condition mindset of the American collector isn't stable. Members of my family were collectibles dealers for years and all types they sold have ultimately depreciated over time. This could be a beanie baby, or a baseball card, or a limited edition elvis plate, or commemorative coins. Same story as a "john wayne edition" post-64 winchester lever gun.
Buying collectibles that must remain mint to be of value isn't fun, because its not functional art that can be enjoyed. It also isn't a stable investment because all roads lead to near zero value. There is a day of reckoning approaching for the collectors of brownings, for example, Almost every one I see is new in box and I don't meet many top wage earners (those under 55) that are excited to buy a bunch of these quite common collectibles.
On the other hand, what is the global supply of pre-war Griffin & Howe rifles in good condition? The number goes down every day through wear and tear. Their replacement costs continue to grow. The amount of artisans alive that could duplicate them is slim. Careful use and enjoyment of the "art" does virtually nothing to diminish its value.