Greensborough Plaza

Kmart (didn't really focus to look at the prices sorry)
YOTS optimus prime
Ultimate optimus and predaking
Voyager predaking

Toyworld
$27 FOC deluxes sideswipe, starscream, ultra magnus and air raid
~$30 Kreo sentinel prime, starscream and bumble
There were probably more toys that i'm forgetting, but toyworld have pretty much a store wide sale.