The income has to come from somewhere. Other than track time, rental cars and controllers, selling merchandise (including cars, parts to build them, controllers, tools, boxes to carry everything, etc.) and renting the facility for parties, what is there? Maybe an online store to sell merchandise. SO.... how to best get that income?
(This is all stuff touched on before, but I'm just thinking it through)
1. Provide a comfortable, clean, well-lit facility that's easy to get to (and easily visible) and has parking in a safe area.
2. Put in interesting tracks for a variety of types of racers (at least a fast track like a King or Hillclimb, a drivers' flat track, a drag strip, a 1/32nd scale track perhaps with beautiful scenery and people, an HO track.... and anything else that enough people want!).
3. Stock it with with cars (all scales, including 1/32nd scale RTR), parts, and tools that the racers need.
4. Be a hands-on, knowledgeable owner who is a pleasure to deal with.
5. Have regular racing programs for those who want them.
6. If there's time, reach out to potential customers, be it a mobile track to boys/girls clubs, schools, hot rod and other car groups etc.
Unless the overhead is so high (rent, electricity, etc.) that you're too close to breaking even, it should grow.
Keep that optimism going. There are PLENTY of people who would love a facility like I described above.
Eddie
PS, I'd like to hear of the other important things I've left out.
Eddie