Who said anything like that? A sway bar isn't a track mod...a cage is. There is a difference in a fun car on the street and a TRACK car.
No, $100 gets you 40 minutes of true track time. That wears NOTHING out...lol. I spend $100 on an entry fee for this particular group (SCCA PDX), $20 in gas, THAT'S IT, maybe an oil change. Nothing else. 40 minutes won't kill a car if the driver isn't a moron.