Hi Adam
welcome to addiction......or perhaps that should be re-addiction in your case.
I've been turning most of my life and had a successful 15 year career writing on the subject and have never felt the need for a pressure vessel (other than the time the Mother-in-Law was purging me for a new cutting board and she supplied more than enough pressure!)
My suggestion, for what its worth, would be to keep your feet on the ground, at this point, concentrate on perfecting the normal tool handling, finishing and design skills before setting course for the stratosphere.
All the best with whatever direction you settle on.
Brian