Yes Aussies, and in fact, the rest of the world are once again excluded.
However in defense of WGT, this is possibly a stipulation of the sponsoring company. They want to maximize sales for the markets they sell to. Sadly sending large items to foreign destinations is time consuming for their dispatch and costly to ship via reputable channels. Yes this cost is borne by the purchaser, however the level of this cost is usually prohibitive so results in very few sales.
What WGT should be trying to do is approach companies in other countries to gain sponsorship for local tournaments. The problem is WGT is essentially a US company and simply do not have the feet on the ground or resources to do so. So once again the rest of the world miss out as usual.
Maybe the World part of the games name should be dropped.