Having paid way too much for college text books for my daughters, I appreciate the fact that the economy is driving more schools to use digital texts. In this Washington Post article on digital textbooks, it points out that California is moving that way but meeting some resistence.
How can their be resistence when so many students are digital savvy and the current cost is so high? It is the publishers with a $7 billioni industry trying to protect their livelihoods.
In Liberating Learning the authors say that digital content will be offered for free and it is the support materials that will make publishers money. I don't think it will ever be free, but the price will come down and the support materials will be much more important.