To this day, I still love libraries - all those shelves with seemingly endless possibilities for what to read. And my local library is fantastic. If there's a book I want and they don't have it, I can send a request via their website and they always get it in quickly.
I will on occasion buy/or order books to own, but largely, I get my reading material from the library. I've discovered some favorite authors from books I randomly selected from the shelves - authors who's books I've gone on to buy, whose future books I'll be watching for.
What about you? Are you more likely to buy a book or borrow one from the library? Have you ever asked your library to get a particular book for you?