Mike (Homepin), my father is a pilot so I know where u r coming from.
But, I will say, that most regional airshows are organised, from my past experience, for rich people to show off their private planes, so making money, is not the aim of the game. Larger Airshows, do and can incorporate Aeroplane sales etc, so making money in those environments can be a larger aim. But not so much in Australia.
Sales are more important in USA and Europe. Insurance has killed off alot of Air-Shows in Australia unfortunately.
Retropin (Gav) has made some excellent points. I agree with 100 percent of what u have said.
It makes us look at ourselves with the view that we cant have our cake n eat it too.
As a hobbyist, I want the Expo run a certain way. As a businessman, I want to run it a different way. But, I will always side with the business version, cause thats what i do for a living. Run a business.
The costs for one company, make it impossible. The costs shared accross several businesses make it possible.
AJ said it well above, 1 person with deep pockets who has the time, or someone who can make the time, (or you would have to have 5 cool heads from the industry all working together).I wish i had a magic wand. I guess we all wish we had a magic wand for this expo problem.
I take my hat off to Last years Expo Managers for all the crap they went thru after reading what Gav (Retropin) has mentioned.

I guess there are some problems you just cant fix for other people, no matter how bad u want it..