Okay, so it's $400. But being able to create 3D graphics and titles that are HD quality will allow you to charge more for your services, and add an extra dimension to your own projects. Also, if you compare it to the monumental cost of most 3D graphics programs, necessary RAM and other hardware, and tutorial videos just to open a project, the $400 for Invigorator Pro is a drop in the bucket.
I came across Zaxwerks at NAB as I was flying through the Plug-in area, and stopped dead in my tracks when I saw a demo where they created a 3D logo from scratch in 5 minutes. Any program that can give you those kind of amazing results in such a short amount of time is with a look, and I'd say Invigorator Pro is a must have for any editor.