Autodesk has a few promotions available to you that will allow you to save money when upgrading or buying new software. Below is a listing of the most recent ones they have to offer:

Level Up II
Save up to 20%* on all upgrade paths when you move to an Autodesk Design or Creation Suite.

Autodesk AutoCAD LT Portfolio Promotion
Save $200 on new licenses of Autodesk AutoCAD LT products or up to 30% on upgrades.

Autodesk Financing
For a limited time, customers can benefit from low financing rates of 2.5% for 24 months or 3.5% for 36 months on all Autodesk software.