@razzatazz: I love looking at that stuff in older books. I have about 100 or so from late 60s to early 70s. I think it is just another factor on why those books went up in value while most modern books probably never will. People used to enjoy their books and pass them on to friends, cut them up, throw them in backpacks, etc. It didn't matter as long as you could read them because very few people actually cared about the value of the book 30 years from when they had it. That kept the supply of books in good condition low. Whenever people realized they could make money from collecting these things, everybody started reading their books once before bagging and boarding them. Now the supply will always be high for near mint books for just about anything from the early 90s on keeping the value low.