Me too, but I'd be 100% down to replace the base with hot sauce (maybe I can use Tabasco to make a buffalo sauce, that sounds heavenly). I'm like 80% down to try a maple base (or drizzle) as well.
I've never had one with a sauce. Breakfast pizza is super popular here. It's just scrambled eggs mixed with cheddar cheese with your choice of toppings. It's one of the few things I could eat for breakfast every day and not get sick of it.
This is most definitely a sign at a "Kum & Go" in the U.S. I've stopped in a few times in the morning and see these pizzas. Haven't been brave enough to try one yet, though. It's actually a pretty repulsive proposition at 7AM in the morning.