I don't think he's really worth $200 even on the show betta circuit. Maybe they just didn;t take a great pic, should have out a light background behind him. His fins look too pale for melano. Maybe he is a butterfly, but that isn't in his description. His anal fin is quite a bit longer than his tail, which isn;t a big deal, but if you are paying $200 for a fish, it had better be perfect. And I don't think he is perfect.
I am not trying to be mean, just looking at it through a show judge eyes (or pretending to, as I am not one.)
I like black bettas. But he doesn't pull that off as well as I would like. The marble body takes some color away, as do the clear fins.
Blah blah blah...do you know how many other bettas one could buy with $200? Even really nice ones off Aquabid...