I've always wondered about the determined marketing to students. The majority of people seem to be in the post-grad to professors in academia and professionals like lawyers, doctors, engineers in other sectors. The undergrad student is just not who is buying and using the Edge. They need to market it to people who need to read and mark up pdf/epub documents. It's not a very good document creation device, so writing papers is not a strong point. Reading, correcting, annotating and editing papers is much better. Hence the professionals who like the Edge. Plus, they often have more disposable income to spend than undergrad students. The other small group who might really use the Edge are people who read a lot of books from free sites, like Google Books, Internet Archives and Project Gutenberg. This is my group, and I don't know how big it is. I do know that I never seriously looked at anything other than the Kindle DX and Edge because I really, really wanted the eInk and largest screen size I could get. And, the Kindles don't do well with pdfs and don't do epub at all.

Alefor, I am disturbed by the lack of response to your offer of helping to market to medical professionals. That is a WONDERFUL place to market the Edge. Not HSN. Not undergrads. Professionals, including teachers. And, like Physics said, even some/many post-grads will still need a different device.