I am curious regarding your opinions on mounting toms. On the kick? On a stand? On a rack?

Is it a matter of convenience or sound quality? In a live setting, is the sound quality that much different? Is it just the kick that is affected or is there some effect on the toms themselves?

I personally love to have my toms on stands mostly so the geometry of my kit is more fluid. I can move the kick without affecting the tom location. I don't have a virgin kick, so the shell was already drilled at the factory.

My goal is to eventually get a rack.