I'm a firm believer no matter the restoration, cars arent meant to sit. I always can fix rock chips etc. But you bring up good point. When I started messing with Z's 30+ years ago, who would have ever thought these cars would be valued like they are today.
I'm doing a rotisserie job on my 73, and never thought that I wouldnt use it regularly, and I still plan to, but if the car is worth several thousand dollars after restoration, at what point do you not worry about a paint chip, but being a target for theft just because the internet says an old cheaply made Japanese sports car is worth $xxxxxxx. I know "D" hubcaps arent 73 correct, but I plan to run them, and now I'm concerned about that, just because how expensive they are getting, I mean you just pop em off with a finger.