I'm amazed people still want to blame that franchise for anything anymore considering they don't even street race anymore. Least, not realistically.
But yeah, muscle cars of that era have always been highly desired cars. I imagine that's why the franchise even picked them in the first place. I checked Hemmings to get an idea of what top dollar muscle cars go for, and already, I see a '69 Yenko Camaro for $650,000, a '69 Mustang 429 Boss for $430,000, a '69 Corvette T-Top L88 for $400,000, a '69 Daytona for $315,000, & a '68 Charger 440 R/T for $235,000. These are on the high end of the spectrum, but it demonstrates where the market is on the best examples of these cars & seems to indicate that if you want a moderate example of a desirable muscle car, you're still going to be shelling out a lot of money.