I'm happy with my iPad. I can read books, watch videos or take notes all in one, plus I get to surf the open web on a super fast browser on top hardware that doesn't try to mimic the dead-tree. Not sure what the use-case for a sluggish 'paper-like' interface would ever be?
I know some folks will jump to suggest less eyestrain but neither paper books nor e-ink help with that. Since eyestrain stems from overworked eyes and a tired brain [1], it doesn't help to claim that the nature of surface revealing the text has anything to do with it.