the sanctioning body needs to rent the track, provide safety and track workers and pay a big insurance bill. it can easily cost 25,000 for a weekend. most clubs are nonprofit, but need to cover expenses. its really not expensive-i saw someone mention a tune drag day at 20 dollars. how much track time do you get (10 runs equals about2 1/2 minutes?). at a nasa weekend you get about 3 1/2 hours on track, a private coach and about 2 hours of excellent class time. btw, instructors work for free in exchange for free track time and lunch.