Thanks for following me xerovoltage.
While I do get paid quite well for the job that I do (roughly $10 more per hour than a person working in the same position in San Francisco) the reason I travel has more to do with the value of currency than what I earn.
In Australia the majority of jobs are better paying, but the cost of living is also higher. The average wage for most people in the United States is lower, but so is the cost of goods and services generally.
Because the Australian economy is rather robust at the moment, the Australian dollar is at parity with the US dollar. It means a person like myself can take advantage of both the high Australian wage and the low cost of American goods and services.
Around 2008, the AUD plummeted to around 60 cents per USD, making US travel extraordinarily expensive for Aussies (but Australian travel very cheap for Americans).
It also helps that I do my best to keep my expenses as low as possible.