Only idiots buy anything from the college bookstore.
In my first semester of college, I made the mistake of taking my financial aid check to the college bookstore and buying my books there. There was a long line, I think one of the books I needed was unavailable at the time, and somehow, I got robbed of 800 dollars in change. Jesus Christ, I never got that money back. Ever since then, all further financial aid checks that I got and will get will go straight into my savings account.
I buy all my college textbooks online. They are a lot cheaper than at those college bookstores. But still fucking expensive as Hell.
To reiterate on what Scrap said, I think college in general, at least in the USA, is a fucking criminal racket. Even a "cheap" community college costs about $2,000+ a semester. Where the fuck is all that money going into, anyways?!?