Amazon's ereader the Kindle is getting more and more popular these days. I don't own one because a) the initial cost, b) I don't travel that much, and when I do I don't need more than a couple of books, and c) I like the way print looks on a page much better than pixels on a screen.
However, I think the Kindle has its place, and I don't see why we can't have both books and ereaders in this world. There's room enough for both!
That said, I must share a slightly slanted video series called "The Book vs. Kindle" by Green Apple Books on youtube (you can see the full list of them here) which is pretty funny. One of my faves, "Storytime," below: