I just read SF author John Scalzi's treatise on writing, You're Not Fooling Anyone When You Take Your Laptop to a Coffee Shop. I found it at the local library. While adding it to my "books read" list, I noticed the current selling price.

Now I'm afraid to return it, lest someone with fewer scruples than me steal it and sell it...

(How a limited edition, signed copy ended up in the Prince George's County library system is a mystery to me, anyway.)