Those publishers are so predatory and user-hostile, I wonder if they will actually be able to restrain themselves long enough to establish a market. As it is, very few people are stupid enough to buy a "textbook" that comes with auto-self-destruct DRM that renders it unusable at the end of the semester.

Of course many college kids are just kids fresh out of highschool with no financial skills or haggling skills so I guess I take back what I said about there not being enough dumb-dumbs to fuel a market for DRM "textbooks". People do still take out loans to finance their English major, after all.