Have you heard about the new Expresso Book Machine that will print out of stock and out-of-print books on demand right there in the bookstore as you wait (and watch)? You just search for the book you want (approx. 4 million books are available right now) and the machine prints out the cover and pages and then binds them all together. Voila! Instant book!
Here is the video that shows the machine and how it works: