Have you ever read an article by an officer of a national organization, someone who doesn't seem to understand some important aspect of the online world, that just makes you want to scream?
The immediate past-president of the American Psychological Society writes about why college textbooks are so expensive: Used-book dealers are like video pirates!
Unless and until laws are changed to prevent the organized sale of used books, you can expect textbook prices to keep increasing.
So I'm screaming: "There'd just be a boom in student-to-student book exchanges online!"
Not that that's the only (or even most important) thing his legal solution ignores. Oh, the author also suggests that professors might do their small part to defeat used-book-sales piracy by giving their comp copies to libraries, but he doesn't recognize that we're part of the "problem," too -- I've sure noticed an increase in ILL requests for textbooks in the last year or so.
(Full disclosure: My spouse works for a textbook publisher.)