I like paper for technical books, because there's not a good equivalent of writing in the margins of ebooks and I can have more open on a table than on a monitor. For everything else, ebooks are fine.
This is why I don't like my Kindle. I read on it a lot. But there is something undeniably awful about not being able to write in the margins of Hemmingway. I know there is a note taking function, but I haven't used it since the first time I realized it was there. Sad, lonely note. To balance that, I do love having a built in dictionary. Especially one that translates. Even better if it did idioms. I know that doesn't exist, but the first time they make a "figure out why I should be giggling about this Shakespeare passage" in an ebook reader I'll probably find that programmer/team and buy them a beer.