I have been thinking of picking up a Kindle. I have a vast book collection, mostly Scifi fantasy, which tends to be very heavy when traveling. But as I was reading my current book, Robert Jordan's "The Great Hunt" it occurred to me that one of things you can't get from an e-reader is a visual as to how far you have left in the book.
Looking at my book, I could easily see the thickness and how far I had left till I reached the end. Sure, if I got a Kindle I could do the math. I'm on page 200 of a 350 book, but being able to look at the thickness left on the other side of your thumb is something that you can't get from a Kindle or any other e-reader and I'm not exactly sure I want to give up that visual.
Just a quick observation.