Luxury restaurants in L.A., Boston and New York are selling limited-quantity burgers with premium ingredients like wagyu, foie gras and house-ground meat.
https://www.foxnews.com/food-drink/restaurants-selling-gourmet-burgers-so-popular-have-cap-orders
https://www.foxnews.com/food-drink/restaurants-selling-gourmet-burgers-so-popular-have-cap-orders