$300 for the three classes that I've so far bought books for.
Grab a beer, here's a sob story for ya. Last semester I took an intro descrete math class from the computer science department. We finished most of the textbook and I returned it for about $10. This semester I'm taking a more advanced descrete math class from the math department, AND IT USESES THE SAME DAMN BOOK!!! ARG!!! I had to rebuy the book for almost $100. Oh well, at least the class should be easy if it recovers many chapters
![Smile :-)](./images/smilies/icon_smile.gif)
It must be going to do that because there are only a handful of chapters we didn't cover in the intro class, and the intro class isn't always a prereq for the full class, so it will be new to some people.