This is probably not something you'll hear the companies say themselves, but frequently the exchange rate between the US and other countries is set on a yearly

This is probably not something you'll hear the companies say themselves, but frequently the exchange rate between the US and other countries is set on a yearly or even long-term historical basis and not modified. With the long term historical average of AUD-USD at around 65 cents, this can make software look outrageously overpriced. Given the relative size of the Australian market (2-4% sometimes) there is little incentive to change this methodology.