I always wanted a show car when I was younger, and have owned a few higher end sports cars that I kept immaculate. What I learned was that I spent so much time and effort worrying about the car, that it took the fun out of ownership.
I'm still planning on having a few more vehicles, like a survivor type Model A coup and a Dune buggy, but no show or sports cars. I love them, but I care too much if I own them. They are more like artwork than usable vehicles. I like stuff i can drive. Besides, there's really no place left to drive a real sport car like they are meant to be driven. It's not fun to drive them slow when you know what they can do, how to make them do what they do, and how euphoric it is to really get out and drive them. I would love to drive a Porsche 997 4S or GT3 again, but I'll never buy one. It would just end up as a garage queen.
I'll stick to stuff I can use.