It's not as if libraries are going to reject books for donation that don't meet some quota of checkouts at other libraries[...]
...
actually. Well. It's not
quite that, but checkout history
was one of the things checked to decide to keep a book around, when I was working with a library -- and, no doubt, if the system they were using was more sophisticated, it would have been tied into a wider range of libraries beyond the immediate.
But. Yeah, I mean, the library
will probably take the book from you. Kinda' regardless, from what I saw. It's just... some of them never make it to the shelves. Admittedly, sometimes it's because they're being shifted off to libraries that have more open space, but. Sometimes they just get taken away. Limited shelf space, less limited book number, only so many places to put things. And when something hasn't been checked out in like twenty years...
But yeah, libraries don't really advertise or incentivize specific sorts of donations, or at least none of the ones I've been around have. They'll take pretty much anything, but they don't really
ask for anything specific. Just doing that nets many more books than they can actually store. So I wouldn't worry too much about borrowing books having any likelihood of increasing sales for wozzname.