Power Rating of a coil

I just have a quick question about the power rating of a tesla coil. I see
everyone rates thier coil in watts instead of VA. I was just wondering if this
is done because in a tesla coil the reactance of the primary winding should
equal the reactance of the capacitor therefore cancel each other out.  So due
to this all that is left is real power? Or am I totally of base here?


Jess Britt