I just got an email about "Academic Pricing" for software, that included Rhino for $169.98 (supposedly it's $999.00 retail). You have to prove that you're a student or teacher, but I've taken classes at my local community college and that ID was enough to qualify me to buy Photoshop for $199.00.
http://www.journeyed.com/item/239646/Rhinoceros/33631883?UUMC=nbf59sl3&sisearchengine=37&siproduct=Email&clearppc=1

Will