I don't think this makes sense when buying ebooks is so easy and instantaneous. It's not like you make a special trip to the ebookstore and load up 10 books tha

I don't think this makes sense when buying ebooks is so easy and instantaneous. It's not like you make a special trip to the ebookstore and load up 10 books that you're intending to read over the next few months. In this system, it would be very easy for people to keep a wishlist of what they're interested in (already built into most ebook platforms), and only buy something just before they start reading it. They still might abandon it, but I don't see how the publisher is getting any increased sales.