I wonder if you have a not ideal library? I get a large fraction of my audiobooks and ebooks from libraries. For very popular books there's a bit of a wait list, but if you have a very long "to-read" list like I do and a library card at a major metropolitan area (in many states, you can get a library card at any library in your state assuming they take state-level funding, so if you live in a small town in California, for example, you can still get a library card at the SF Public Library and the LA Public Library so you'll have access to larger catalogs), there's usually quite a bit that's available.
New York Public Library here. the selection is definitely better than smaller library systems, but the experience still sucks compared to something like netflix. between finding the books I want in the catalog, never mind a decent recommendation system, reserving ebooks on a waitlist and finally getting a rented ebook onto my devices, it was so tedious that I just stopped bothering trying to check out ebooks from the library, despite the fact that it's free.
