Charley I am split on that issue of value. I have talked to a few people who do the valuations for Hagerty insurance. They see the Barret Jackson cars that sell in 80-115k price range as an aberration. By doing so they look at the broader market where many of the cars sell in the 45-60k range, and peg the value there. When I inquired about the correlation to Jerry or Steve certifying a car and those cars selling in the top bracket of 80k plus, vs non certified cars selling for 60k and below, they stated they are not capable of crunching the numbers that in depth based on certed cars vs non-certed. IMO it is the non certified cars, (many of which get pulled from BJ when they find out it JM will not certify it) the non numbers matching, or undocumented, SS, Z/28, High HP cars, that bring the market down for the certified documented cars. I think the "cream of the crop" still get top dollar for their cars if they are patient for the right buyer to find them, which most are. The "new buyers" whether baby boomers, or any other generation, are somewhat equally in the dark when it comes to being knowledgeable about originality, and how it relates to value. Like everything else they learn by experience and some may purchase a classic car including Camaro, only to find out they want more of a resto-mod, or a more original car than what they have.
Also you have to factor in every year that passes there are new Mustang, Challenger, and Camaros, being sold to a similar muscle car type fan. So based on 2018 alone that was another 75k Mustangs, 66k Challengers, & 40k Camaros. So while there is new drivers being added to the market every year, there is a ton of cars available. This all factors into the demand for the 60's cars. The good news is they made MANY first gen Camaros, enough so that there are ton of them out there that still need restoring, so they are still available for those that want them, in project, driver, or finished show car. I think the great thing is many of the buyers of these new versions, end up being envious of the 60's car owners, and will save to buy their dream 60's car, because they are so iconic.