Before the weekend, I was considering getting my buddy a used book (specifically Thomas Mann's "Doctor Faustus) or taking him out to Indian food. Eventually I took him out to lunch instead of buying a book. But I wonder if people would get upset by purchasing them a used book. I personally wouldn't mind if someone got me a used book because I love books, don't see the need to spend more on something when it's cheaper and I'm grateful for anything I get. Thoughts?