I know Autodesk likes the idea of having the middle mouse button as pan. But most operations in modeling involve rotating and navigating the model. Pan as a direct mouse click is OK if you are working in 2D. And yes I know you can drag the navigation cube and yes I know you can hit "shift" and middle mouse button at the same time.
But why not just have a simple selection to customize your own interface.
Perhaps by making the platform more flexible to the user, it will attract and retain users to the software.