I mostly agree, but there are exceptions. For my birthday a couple years ago my son showed up with a couple cardboard boxes full of books. Turned out to be a

I mostly agree, but there are exceptions. For my birthday a couple years ago my son showed up with a couple cardboard boxes full of books. Turned out to be a complete set of "Great Books of the Western World," worth well over $1,000. He had picked it up for about $30 at an estate sale a couple days before.