Yes, if only such technology existed where you could swap between two bookmarks with a keypress. Or where you could jump to a particular page by just typing in a number.
[Disclosure: The below is an old HN post I made.]
The Social Life of Paper (2002) (newyorker.com)
http://news.ycombinator.com/item?id=434516
P.S. I also subscribe to Safari. It's nice not to lug a bunch of books around, but the reading experience I do find different between the two media.