Another product type I have noticed that seems to have "investment" potential (using that term in the loosest way) are special small-run quality editions of boo

Another product type I have noticed that seems to have "investment" potential (using that term in the loosest way) are special small-run quality editions of books that are very dear to people. Reading Machiavelli or Newton, or every James Bond novel (ahem!), in beautiful leather bound books with quality spines, can add as much as nice quiet location, a stiff drink, etc. when reading for enjoyment. The Bond novels were out of print, so they had me over a barrel. I suspect I am not the only victim.