$4695 with FREE delivery... its getting better!

Im only guessing here but id take a stab at the retailer paying maybe $3500 tops to STERN for the machine... thats $3391 AU$ if bought today.. exchange is worse that it was when ACDC would have been paid for.

Add container shipping..GST etc and its a cool $2K thereabouts profit... remember that with the $6600.. the $600 part is GST and not profit.
Still a better profit margin than the US distributors