There is a Huge Timezone up here on the Gold Coast at Surfers Paradise which usually has 4 or 5 latest STERN pinnys in there, plus every other imaginable arcade game and machine you could possibly think of. The place is so cool for all kids of all ages. ( I only have played the pinnys whilst the kids wreck the rest of the huge place).
Apart from that, there is the occassional 1 or 2 x machine only situations here n there at the Picture Theatres or pub/club etc, but alas, very very few and far in-between.
Honestly, the best Pinball Arcades left in Australia today anywhere, are at Aussie Pinball Members houses. Which, is a good thing .