One issue is that people assume that because digital books don't have to be printed that the price should be drastically slashed. Christopher showed us the costs of making a book. The author has to be paid; the editors have to be paid; the designers and illustrators have to be paid. And don't forget about other costs: the errand boy, marketing, and taxes etc.
Publishing is going to have to change to meet the market demand. It is a little scary to think of all the changes that will be happening in the industry, because change can be a scary thing. A lot of other industries have been digitized and they have survived, so I think in the long run, publishing will be ok.
Thoughts?