Haha - I was there when I was that guys age. Top number was 9 cars, I think. He'll wear himself out soon enough with that and family life and other hobbies will catch up. After the 8th engine rebuild you BDTDT.
I am shocked he paid $2800 for that. Really?
My only con aside from time is crash safety. I now drive in dense traffic and would be scared getting banged up in an old car.
I'll be back on day - retirement age ...
G