Thats a couple of things I mention when people ask me why I went with manual. Controlling the RPM's is the biggest upside, but not just that... You cant rev at times with auto that you would with a stick, also you get better gas mileage with the M6. Now ofcoarse there are so many people on this forum with auto's, nothing against that I'm just young and I've been driving my parents auto cars for 2 years, while everyone around me had a stick sport car. Now that I have one, I'm just too excited to switch back to auto.
Goodluck
