Apple has overcharged both in Australia and Europe for decades, even when the currency has been strong. It's simply because they believe that people who live there will stomach a larger price. It's probably true. It's still infuriating.
It results in funny cases where a Nexus 4 can be 1/3 the price of an iPhone 5.
Just fly up to Hong Kong over a holiday and buy an iPhone there. Prices are cheap, and its what we used to do in Mainland China before (now, iPhone pricing is about 20% higher than the USA sticker, which probably mostly due to VAT).
It results in funny cases where a Nexus 4 can be 1/3 the price of an iPhone 5.