Freakonomics also posted on it: http://freakonomics.blogs.nytimes.com/2009/08/17/hot-dog-ven... "If, on average, he sells only one hot dog and drink every minute the Met is open, with about 500 average daily opening minutes, that’s 500 servings per day. If he charges $3 for a dog and drink, his revenue of $1,500 leaves him $500 per day to cover variable costs. Seems possible, but I would expect that he’s not making economic profits."

From an economics perspective, what I also like about this is the comparison to the food vendor curb side permits that only cost $200 but are limited to 3100 permits resulting in shortage and a "thriving black market" while these specific spot permits are auctioned off. Almost like event marketing and scalping tickets.