I see e-books as a fee for a one time read. I'm not likely to read them again and I can't hand it to my neighbor to borrow. A paper book - I can read it, donate it, lend it out - whatever. I do like how many e-books can fit in my pocket, but I'm finding fewer reasons to buy them and more reasons to own the book instead of owning the right to view the book on some specific platform.