All of my books are in pristine condition. I read them carefully, I don’t dog eat pages, the books don’t get bent, the spines look like I just bought the book. The only exception is Era 1 Mistborn and Elantris, both of which I bought from “Well Used” on Amazon. Those were the first Sanderson books I was introduced to, and I wasn’t going to buy expensive new books for an author that I might not like. After I read them, I kept them with care and they have not degraded at all since I got them.
Also, lots of people are saying that they they have eBooks or hardcover, I am told that I am odd. I buy exclusively paperback books. I will not own a book if it it hardcover.