Can I buy a 1959 Cadillac?

The 1959 Cadillac has always been my favorite car, even since I was a child. I always dreamed of buying one. The problem is, when are they going to disappear altogether and I won't be able to buy one or when is it going to be obsolete? I'm afraid that in the future I could never buy one and drive one because it will be too obsolete by that time.