In my day, the only place we could buy college textbooks was at the campus bookstore. All we did was complain about how expensive the books were and that was that. Now students have many more options, yet many don't bother to shop around. The typical college student will spend $300 to $500 on books every semester. My son's last bill for books came to $425. When a friend told him about buying online at half.com, he checked it out in the first few weeks of school. He shopped for 4 of the most expensive required books and was thrilled to save $140. One of his $40 microeconomics books was $5 used at half.com!
It's worth checking out for the coming semester. By the way, some professors are helping reduce the tab for textbooks by placing material on electronic reserves so that students can access the reading online. This saves money and trees.