1. food trucks are subject to lots of regulation and fees too
2. burrito trucks sell their burritos at the market clearing price for a burrito, which is $18 because most of that burrito truck's competition is brick-and-mortar restaurants with expensive rent because of zoning laws.
A lot of the interesting food trucks around me are routinely more expensive than the brick and mortar stores around, often due to the novelty of the cuisine.
2. burrito trucks sell their burritos at the market clearing price for a burrito, which is $18 because most of that burrito truck's competition is brick-and-mortar restaurants with expensive rent because of zoning laws.