Are you a spine breaker? Or a dog-earer? Do you expect to keep your books in pristine condition even after you have read them? Does watching other readers bend the cover all the way round make you flinch or squeal in pain?
Oh, golly. I break spines, dog-ear. Very few of my books are even in decent condition. Books that I get out of the library read then later buy myself a copy, those are in good shape.
My Unicorn Chronicles are in great shape, as is my copy of the Sea Hawk, and Captain Blood, also Exile's Honor.
While my Take a Thief has finally very nearly bite the dust. My copy of To Kill a Mockingbird did bit the dust as did many others (my first copy of The Wind in the Willows, hey it was one of those children's pop up things? read the parts with Badger 'til they fell to bits. I love badger.)
Bending books all the way 'round? Yeah, I do that too. Books are meant to be enjoyed. As long as you don't have to return them to someone!
also list of top books over the last however long it was...