Did you self-publish or work with a publisher? What were your margins like in the end?
You're right, this is not a new model per se, but it's becoming more mainstream.
What fascinates me is the power of print-on-demand because it allows anyone to easily get into the book business. If Gutenberg's invention of technology giving people access to books was a revolution, it would make sense that technology that gives people access to printing presses is also going to cause a stir.
(I keep a notebook of links to articles about the book business here spundge.com/notebook/6774/ , in case anyone is interested.)
