Bound books will be just like vinyl LPs soon. (which I have a number of) They will primarily fuel a subculture that enjoys some of the aesthetics and history of the physical thing.
Digital formats are great for saving on energy, resources, space, and weight. Not much of a manufacturing cost. No driving back and forth from stores or mailing. As the technology grows with them (they are still relatively new), you will be able to do all the same things... like write notes (and erase) with a stylus on every common ereader/tablet/comparable future device. Someone will cash in big by developing custom frames/skins which make your ereader feel like a real book-- you might even have a few (leather, rustic, big, small, coloured, etc.) for different moods or uses. Eventually, there will be the option for individual pages, like a physical book, which display digital content... so it would feel and look just the same.
The best thing, in my opinion, about the digital format for books is its application in schools. No bags loaded with dead weight! No need to replace lost or damaged textbooks. Syllabi, resources, assignments all up- and downloadable. No more copying. No more asking for more sheets of extra paper. No more needing to buy new physical updates of texts and dumping the old. Simplicity for teachers and students, more emphasis on content and activity.[DOUBLEPOST=1398895844][/DOUBLEPOST]Scroll is to codex as Gutenberg is to...?