Quite right, it doesn't add up. We used to be the last "1st world" marketplace for goods (typically, US/Europe/Asia then us), and we'd cop the original RRP (or new release price) for it to boot. Some things never even made it to Australia (sold out in other regions). So yeah, unless you actually live or have lived in Australia (or another place which has had the same experience) you don't know what you're talking about.
It used to be that we, as consumers, could short cut the price gouging by buying direct (from Amazon.com, etc) and having to cover the international postage (which was still WAY cheaper), despite things like DVD regions (don't get me started on that bullsh*t). Sometimes this was the only option when said thing/movie/TV show wasn't made available for sale locally.
Manufacturers have wisened up since those days and now impose export restrictions on sites like Amazon e.g. can't buy a DLP Projector on Amazon and have it shipped to a non-US address, or can;'t use an Australian-issued Credit Card as payment. Those manufacturers want you to pay the local price from *their* distributors (often double overseas prices). This also goes for services - e.g. I couldn't book train tickets in Europe online with an Aussie-issued credit card, had to book locally at twice the price.
It gets more hypocritical when we start to discuss digital sales when many of the aspects of handling physical products no longer apply. I'm glad this is finally coming to light, most Australians I know are fed up with the constant price gouging which has been going on for decades.