You can't prop a door open with an e-book

Luddites unite!
I read everything online these days, except books. I don't have a Kindle or an iPad. I have a smart phone, which is smarter than I am, but I don't read anything on it.

E-books are here to stay, it seems -- Amazon sells more e-books than print books. But John Abell, writing in Wired, points to several reasons why they haven't replaced paper books. The one I like is this:
E-books