An advantage is that getting an Australian degree means automatic work permit for 4 years. (In Canada, getting a degree means work permit and 2 years to permanent residency). These countries are competing globally and understand how they can benefit from the H1B imbroglio (whereby offshoring companies take/get/buy whole batches of visas originally intended for internationals who graduated from a US university and are individually needed at a local company and give them to hundreds of foreign workers based abroad.)