> there were massive price disparities between old and new textbooks Yes, that's a good tip for students to be aware of. Here is another. In college I discove

> there were massive price disparities between old and new textbooks Yes, that's a good tip for students to be aware of. Here is another. In college I discovered that I could buy used textbooks in the college bookstore if I got there early enough, and I could sell the same textbook for $1 under the bookstore price by showing up at the class the next semester and standing outside the door at the end of class. Using this method I spent on average less than $10 to use the latest versions of required college textbooks. (There were many I kept though.)