Price gouging is claimed often as happening with imports, the reality is different, thanks to the various layers of government and their regulations an importer must ensure products meet our local rules, ie telecommunications equipment needs an a tick, which is a set of rules and tests unique to australia, if you pay the fee and fail the test the only feedback you get is you failed! Then you need C tick, that's normally easy as it's based on overseas rules, the you need Australian electrical safety approval, along with Australian plugs etc.
All that's on top of GST, customs duty, and other expenses, when I was bringing in containers the port handling and transport charges were more than what the shipping line charged to get it here! Many importers have now worked it out, ship direct to the end user and make them responsible for certifications etc!