Thanks for bringing up the currency risk - while certainly not responsible for the entire price difference, the cost for hedging risk against foreign currency i

Thanks for bringing up the currency risk - while certainly not responsible for the entire price difference, the cost for hedging risk against foreign currency in Australia has increased quite a bit according to the Australian central bank (from 5-10 basis points to 30-40 - http://www.rba.gov.au/publications/fsr/2010/mar/html/box-b.html http://www.rba.gov.au/publications/fsr/2010/mar/html/box-b.h...) which will definitely put a dent in your profit margin if you start accepting Aussie dollars.