Last time I tried to donate boxes of books to the town library, they
threw away most of them (or tried to, anyway -- I heard about it and was able to rescue some of the boxes to take to a charity thrift store). They said they didn't even want them for the monthly book sale. I guess that library gets too many donations.
I've moved since then (which is why I was culling the library in the first place), and I understand the library in our new town accepts more books. I just have a hard time accepting the idea of books going into a dumpster. I know they're not like kittens you have to find a good home for, but still!
And again, I may take books I can replace with non-DRM or strippable DRM to a nearby SF store that carries used books, but I don't know as I'd get much in return, other than store credit... and the point is to reduce physical inventory. But at least I'd feel like the books had a better chance of finding readers there.