You mean a restaurant that gets away with serving mediocre food for ridiculous prices, because the "no prices on the menu" gimmick generates enough status/prestige to compensate for any customer dissatisfaction? I.e. the restaurant equivalent of being famous for being famous.

Wouldn't know. I generally avoid those joints.

My tastes are a lot more plebeian.

Unfortunately, I have to eat in one, every now and then, but I always walk away disappointed.