I personally believe that nothing will ever, never ever (notice the repetition), replace the smell of paper and the caress (see the emotion there) of it. Your personal bookmark in it, or if you're unlike me who's very much careful and protective with my books and stuffs, you can even write on it to put your thoughts or even underline words that captured you.
Books, as per MOHO, are one of the treasures here on earth that can't ever be replaced. It can't be taken down by virus or any hacker in whatever way, or well unless they burn it to ashes.
PRO-books here yo! Books are books. NO SUBSTITUTE. IRREPLACEABLE.
Please read on about the news here.
