I liked ebooks when I had 'em. Still have all my stuff, too, in case I get another one.

But there's a certain joy in having a physical copy. Similarly to OP's point about looking at them on a bookshelf, I like looking at and interpreting cover art. I like showing off cool and unique covers. Plus, there's a certain satisfaction in physically handing someone a book I've recommended. Sending a file just isn't the same.