Aberystwyth University closed one of its campuses a few years ago. The place has been left to rot, but recently they’ve started clearing the place out, and removing all the old scientific textbooks. Most of them look untouched. Wonder how much this lot would have set students back if buying new.
My wife and I go antiquing, usually something to do on the weekend that gets us out of the house and exploring. Old History, scientific and reference books are the best. A lot of the stuff in them is outdated, but they're still a snapshot of the world from a different time.