NEW Microsoft Office Professional Academic Suite 2010 for $70

I accidentally purchased the wrong version (i.e. not compatible with Mac OS X) of Microsoft Office at the Stanford Bookstore, and since I already unwrapped the plastic they will not allow me to return it. This is the newest version of Microsoft Office for academic use, and has not ever been removed from the box or installed on any computers. I paid $100 for it earlier this week, and would like to sell it for $70 to anyone interested in purchasing but I am willing to negotiate prices.