Perhaps I'm a bit of Luddite (I've been called worse) but can anyone actually give me a good reason why anyone would want to read a book on one of these, as opposed to just reading from a book. To me, all of the advertised advantages appear to be just clutching at straws - "In the time it takes you to read this review you can download an entire book"????? So what???
The only possible advantage I can think of might be for large unwieldy text books for students.
I never felt over the years that my reading was in any way hampered by having to do it from a pesky old book.
I did a search of the board for the topic but couldn't come up with a satisfactory thread.