The read-look of books

I always think books should look read. I know people who try not to bend the spines of books as they’re reading them and I really don’t understand that! I fold the spine, bend the book, mark the pages, hell if I really love a book it’ll probably have food stains in it cos I haven’t wanted to put it down while I eat! They’re are certain books I’ll try my hardest to keep neat but even they will look read! Some of my Harry Potters even have small rips in the pages from when I’ve been that mad or excited I’ve torn the page when I’ve turned it over. Battered books aren’t tatty, they’re just well loved! What’s everyone else’s opinion on the state books should be in?