Only if it is near mint or better.
I've purchased three copies of "How To Play Winning Blackjack" through various sources and have paid twenty, fifteen, and ten dollars. Granted, my copies are in less than perfect shape, but nonetheless, they are still nice reading copies. I think if one is patient and resourceful, he may find pretty good deals for his books. Fifty two dollars for a near mint or better book would be a pretty good deal as most would ask for one hundred dollars plus, but if the book is degraded, I won't pay that much.
Braun's book is one of my favorites. I especially like the basic strategy win-loss probability charts he presents.