Colour, movement and noise, it attracts people. Glad you were all entertained. However as a learning experience for a GA pilot, Avalon, at least on the trade days, was a big fat zero.
Well, maybe not quite.... CASA's use of an air display to ramp check GA pilots flying in conclusively demonstrates their contempt for GA aviation. Did they ramp check any of the pilots of the shiny business jets and helicopters that were on display? Do they ramp check Jetstar? Of course not.