I like to see interest given to any sport, especially racing.
Just a few notes on the making money side:
1. 99% of drag racers never break even. I'm sure it's the same with round and mud and road racing.
2. I consider the cost, as an entertainment fee for having fun and fellowship with family and racing friends. If I go a few rounds to pay for maintenance, it's a good thing.
3. If by chance you are making money, you are owned by the "man" and have to show up and attend sponsored events and other tasks.
My opinion and experience..... Dave (still having fun)