The later I'll probably cancel because I'm not really reading them.
OTOH the books are excellent. The contrast on the ePaper isn't as good as with paper, but it's easy to read. The mere fact of carrying several hundred books I wanted to read around at a given time is excellent. I'll admit that I'm not sure that I'll get all my books this way. There are some titles I'll want as a physical book rather than purely electronic. However, for handling my bad habit of picking up something crap in an Airport bookstore this will, actually, probably save me a small fortune. I'm currently seeing how long the battery lasts from a full charge with no radio turned on.
So far we're at 2 days and counting.