I always buy my books. So far my new home library needs books to fill it. I carefully consider reviews before buying books. For example, I passed on "Artemis" by Andy Weir even though I loved "The Martian" because it got bad reviews. The reviews for "Project Hail Mary" were strong so I bought it and loved it. I am very glad to have it in case I want to read it again. So far I have passed on "Ready Player Two" even though I love and own "Ready Player One." It messes with my collector mentality so I am coming to grips with it. I may borrow RP2 from the library though. I saw that my library has it.