If this is the future for bookstores, I can live with it so long as there's a way to determine royalties for authors. As a reader, I like the idea of being able to walk into a bookstore and truly be able to buy what I'm looking for.
Though I would miss being able to look through the book to make sure it's what I'm looking for. Once you've received a custom-printed book, I don't imagine the store will be eager to accept a return.
I was aware that Northshire Books was doing this, but hadn't heard much about how it was working out. Maybe next January on my trek north for retreat week, I can stop in Manchester to check the Espresso Book Machine out.