So, I can somewhat understand how a track photographer could make money on a local event. I know that when I drove my street stock car, I would always buy a couple of the better action shots from him. Have enough drivers/wives/parents/fans do this every night and I could see the photographers making enough to continue to do this.

However, I don't understand how they make money on the traveling series. Who is their target audience? Are they trying to get a picture published and what does that pay?

Or am I completely missing how they make their money?