The weight of the Kindle is a significant factor. A large paperback or hardback can be annoying to read, especially if you're in bed. Remember holding a heavy paperback above you? Or how annoying it is when you lie on your side and one page of the open book is easier to read than the other? Or pinning a book open on the pillow with one hand as you read? Well, all that's out the window. Reading a lightweight e-reader is comfortable and handy and it's almost impossible to lose a page. Need to stop reading for a moment? Just put the Kindle to one side, and when you return it's still there, on the same page. The only time I lose a page is when I grip either side of the device wrongly and turn a page forward or backward unexpectedly; easily resolved though.
I've tried turning pages on other devices. For example, on the iPad there's a page-turning graphic where the page rolls across the screen under your fingertips. Fact: page-turning is NOT the exciting part of reading a book. If you're enjoying a book you don't even notice that you're turning the pages. However, when I tried a different brand of e-reader I was dispapointed at the slowness of the page turns and the way the device seemed to have a fit as the page refreshed. It was distracting. This is not a problem the Kindle suffers from. The page turns are swift and delicate and do not interrupt the reading experience. On top of all this, you've got a crystal clear display and the ability to adjust the font size.
