Why Pay for Intro Textbooks?

Mitch Smith:

If ramen noodle sales spike at the start of every semester, here’s one possible reason: textbooks can cost as much as a class itself; materials for an introductory physics course can easily top $300.
Cost-conscious students can of course save money with used or online books and recoup some of their cash come buyback time. Still, it’s a steep price for most 18-year-olds.
But soon, introductory physics texts will have a new competitor, developed at Rice University. A free online physics book, peer-reviewed and designed to compete with major publishers’ offerings, will debut next month through the non-profit publisher OpenStax College.