Yes, let me take a pizza home, cook it in my crappy non-pizza oven using my electricity and pay you the same as I would for a cooked pizza.
The only time I've seen them useful is when you want to keep cheap, but hot pizza flowing at a party. It's a notch above frozen supermarket pizza, but at least two notches below restaurant cooked pizza.
Best served at parties where Bud Light is the good beer in the cooler.
Ahh, there's the rub.
A family size pizza w/ just about everything.. $13.( and there is coupons in the paper for $2 off often)
Get it on the way home from work, cook it later, serve nice and hot.
Yes, we use them for pizza.