If you made the based aircraft pay for all of the services then why should they want to tempt visitors?
After all if the locals are funding the place then they should have the right to keep it to themselves!!!
I know if I was fully funding my own airfield then I would not want any free loading oiks landling on my nice shiny airfield! In fact as I operate for a lot of the time from a farm strip this could be the case, bit the owner is happy to accept visitors and jsut asks they make a contribution to our grass cutting.
You have a very strange idea of economics bing boy.
