Now that is a fascinating link. It’s marginally accurate (nothing is cheaper, but only some are more expensive). Add to track rental: ALS/BLS support @ up to $1000/day each and you need minimum 2, possibly 3. Wreckers @ $500-700/ day each and you need more than 2. Insurance/sanction fees per event... the list goes on. Oh, and if it’s a spectator event, start adding everything from port-o-lets to security guards 24/hrs a day.
Its an interesting business model to say the least.