Haha yeh, the much larger single market is pretty great for consumer goods prices and availability compared to Aus
I'm still surprised by the sheer variety of audio equipment at all price levels in Germany - loads of brands of all sizes selling domestic only, or to neighbouring countries like Switzerland or Austria. Even German domestic manufacturing was not as pricey as I imagined it to be. Brands like Canton, Phonar, Abacus, SPL and several other pro audio brands come to mind selling what seem like well-engineered equipment made in Germany at surprisingly reasonable prices.
edit: to answer the original question, poke around for domestically-made equipment, especially used. Australia also has a surprisingly rich hifi manufacturing scene. Off the top of my head, stuff from Krix, Whatmough, Legend Acoustics, Equinox might fit your budget used.