Naw....that's cool, OTPlatinum.......I see your point entirely, if you had acres of space & a dozen grills, then maybe.......but when you already do a lot w/ your cast iron, then why?
I DO NOT have acres of space, but do have dozens of grills, which kinda puts me in the same fix;
I'd probably dedicate just one rightly matched grill, that I could keep stored out of the elements, just for the pizza deal.....
It would be neat & I would most likely do pizza & maybe related items more often, but cost & space are a thing !!!