We got into a deal at a track this summer where when I got let go from my job we had to miss a race due to finances. While the track has 2 drop weeks (out of 24), they have 2 weeks that you are not allowed to drop and that happened to be the one we missed. When I got a new job, making races on a Friday night that far away became hard and we just quit going. The other thing that really screws people up is double/triple points races. If you only get 1 or 2 drops and you miss a double point night, you are done.
The schedule we really liked this year was Red Rock. It was something like 12 races, spread out like 2 or 3 a month where you could have a life outside racing. Then they partnered with another track that race the other weekends, so if you wanted to race both for points you could. They also had some combo events where your 2 race point total resulted in money. Was a real nice setup.