There was a UH-1 Huey hanging from wires in the museum that really caught my attention, it looked so sad to see this workhorse strung up as a relic. I was mightily chuffed to actually see it fly during the RAAF's Point Cook bicentenary display.
The museum is unfortunately constrained by hangar space, the reasons they can't build more is a complex one. Please visit Point Cook and you won't be disappointed - and leave a reasonable donation as they really do make it go far.
I used to enjoy the Sopwith Pup and Fokker Dr 1 displays but the wowsers of political correctness saw them relocated to Canberra at our loss.