It takes one to know one, Joan!
Every time I move, the movers' first words are always: "You have a LOT of books!" (My walls are lined with boxes of books - lots of old science fiction plus some of everything else.)
Unfortunately, all were stored in a very humid basement for two years, and are probably unsellable. But when I retire, I plan to spend a few years going through them, re-reading some and selling, dumping or giving away at least 3/4 of them.
