I started buying all my books online. It was considerably cheaper than even renting from the bookstore. And fortunately my teachers weren't really picky about what edition of a book you have asking as it's one or two editions from the current since there aren't any significant differences anyways. Anymore, text books are highway robbery.
Really?
I stopped buying books online when I realized shipping costs were not worth it and book shops can make cheap prices...
Btw shipping costs are high because of the icredible speed of the mailing service....so quality has costs...