You must be a techie. I respect your opinion, though I don't agree with it. To me a car isn't a cellphone.
Running an old muscle car is a hobby. Like other hobbies, there's not much practical value in it. Many hobbies are a complete waste of time and money, to begin with.
I've always dreamt of having a muscle car. In fact, I wish someday I could restore my granduncle's '66 Chevelle 4-door. I only saw it running as a kid, and I wish I could still see it running now. Unfortunately it was garaged because it was getting too expensive to run.
Muscle cars represent the era when the Americans were very proud and happy about their cars.