That discussion reminded me of the most depressing library I ever entered: the library of my high school (where I studied, not the one I teach in now). Theft was alas a common problem, even for books which didn't exactly look easy to steal- for example a volume of the Encyclopedia Universalis was missing. Their literature collection was quite awfully empty, and one of the librarians even told me that at least, since they had so few interesting books, there would be a smaller chance for them to be stolen
I remember a friend who was quite depressed when realizing that the copy from "Henry V" that she had borrowed still had most of its pages uncut, and it had been printed around 1947. They had a grand total of two books about dance (that was the period when I started being interested in ballet), dating from something like 1956 and 1964 (that was in the early 1990s). And one day a friend and I found that they had a collection of books of Victor Hugo printed in 1882 (so it was before Hugo's death in 1885) and several other books dating from the mid and late 1800s (well, that's not so rare, but we were impressed), and they were all dusty on a forgotten shelf... I'm not blaming the librarians (I suspect it must have been a really un-rewarding job, and with a small budget) but really it was a depressing place (even the library of my junior high school was much better).