That’s the $64,000 question. No one knows and if they claim they do, they’re lying. I suspect that you’re right - most stuff that is collectible now will not have the enduring value over the long run - but placing bets on what will have value is next to impossible. There’s a new book out by Jonathan Harr about a lost Caravaggio painting - it was originally lost because Caravaggio had fallen out of favor and the painting was basically considered worthless. Now, of course it would be worth millions. Who’s to say what authors and books would be valued in 50 - 100 years? Right now, Catcher in the Rye and To Kill a Mockingbird run neck-and-neck for two of the most desired post-1950 U.S. Lit 1st’s. I would be not at all surprised to find that in 50 years, one remains highly valued and the other gains little no value - and in another 50 years, the positions could switch…