MilFlyer
Do you have any pecuniary interest or employment or corporate management role in either OzR, AvP or the Airventure organisation? I don't.
I'm just trying to work out the motivations for your outrage on this.
GA air shows in Australia these days are effectively glorified Aeroclub fly-ins, organised by volunteers who try their best to make it work. Some fancy themselves as important wheelers and dealers, but they generally aren't. I reckon EFB subscriptions out of attendance at Airventure in Australia would be chump change compared with the usual media through which people choose and subscribe to an EFB. I can therefore understand the dilemma faced by OzR and AvP and the temptation to just shrug and say: Screw spending money on this.