At least on the East Coast you have a choice.
Try Darwin where can we go? No where we just have to pay up. In December last year we had a similar (more) increase in landing fees. The justification was additional security etc, when really it was to pay for the demise of Ansett.
Darwin, Tennant Creek and Alice Springs are all owned by the same operator and the same hikes were across the board. Just about costs $100 to slap the wheels on the ground in a Chief.
But then again who really cares we are just the local opertors...