It's weird - I'll order a reference book with my own money, sight unseen, and if it turns out to be a dud... I don't feel too bad about it. Since I can't look at most of these in advance, it's just the way it goes. I plan to either donate them, or give them to another scadian, or... whatever. But now that it's literally free money, I'm sweating it not wanting to "waste" it.
The whole thing is irrational. And so very me.
On that typical note, Merry Christmas everyone.