DxDy on the Vegas Pro forum found this on Amazon:

If anyone is interested in upgrading, Don't know how long this will last...

List Price: $699.95
Price: $349.99 & FREE Shipping. Details
You Save: $349.96 (50%)

http://www.amazon.com/Sony-SVDVD12000-Vegas-Pro-12/dp/B009H9HLVQ/ref=sr_1_1?ie=UTF8&qid=1369763176&sr=8-1&keywords=vegas+pro+12

Regular price to upgrade from Studio is 489.95