Effective March 16th, Autodesk is introducing their new "Simplified Upgrade Model".  You can save by upgrading to the most current release and getting onto subscription before this new pricing model comes into effect.

For complete details visit www.autodesk.com/upgradeandretirement

What's Changing?

Autodesk is introducing a new, streamlined upgrade pricing model on March 16, 2010. Under our current upgrade pricing model, the price of your upgrade depends on which product release you own. After March 15, 2010, your upgrade from any of the three previous software releases will cost 50 percent of the price of a new license, no matter which release you own.

Each new release of our software is designed to help you work smarter and faster. That’s why we always encourage our customers to upgrade. The best way to get current and stay current is to upgrade your Autodesk® 2007, 2008, and 2009 software with Autodesk® Subscription before March 16, 2010.
 

If your product is older than 2007, please read about the Legacy Program for details on how you can save.