Not everyone has $10K to spend on dinner, but enough do. A restaurant like this will not cater to people who need to borrow to pay for the meal. $10K per pers

Not everyone has $10K to spend on dinner, but enough do. A restaurant like this will not cater to people who need to borrow to pay for the meal. $10K per person is basically the equivalent of a week at a five-star luxury resort. This is well within reach of anyone making $500K/year and there are enough foodies, adventurers, and people who will use a meal at a place like this as a way of "keeping score" in that group to keep the reservation number for this restaurant perpetually busy.