VAG-COM benefits
 

I recently bought an A4-B7 Cabriolet 3.2 and have been spending many hours reading the forums and trying to learn about my Audi. I understand that VAG-COM is probably the best of the scanner/tuner packages out there but since my car is based more on the B6 platform, what actually would I gain by getting VAG-COM as opposed to the other lesser packages since the car is of the earlier CAN-BUS design?

What VAG?