Fascinating discussion on See Also about the definition of "book" which really makes one think about the notion and how it's (might be) changing.
I do agree that a book as a physical object is very different from any electronic or digital version. As the article and comments imply, we're nowhere near the perfect e-book reader/format.
It also raises the issue of how we teach kids about the beauty and value of the printed word. I'm afraid I don't take a lot of time doing that and get distracted by the need for information over the need to interact with the physical thing which is the book. Maybe this year I can figure out better ways to help my students and staff really appreciate books for their own sake as well as for the information and entertainment they contain.