Absolutely no way to enforce that. If someone says their game doesn't run, are they going to lug in their desktop setup and show the retailer or the retailer going to a make a house call. Just how do you verify they're not BS'ing? Even so, is a game company going to call back the development team and recode the game so it won't crash on little Joey's home made machine. So repair is out, here. Its refund propably having to take the consumers word.The laws in Australia don't give you the right to return something if you simply don't like it or change your mind, there has to be something fundamentally wrong with the goods which makes them unfit for purpose or if they are misdescribed. Even then, the seller at first instance is not obliged to provide a refund, they have the right to first attempt to repair the good or offer an exchange.
Nobody is plotting to ruin Australians' day. They are looking at the place like a market and 'market pricing'. They basically are looking to maximize (profit per unit)x(number of sales). Whatever price makes that biggest is going to be the price. I guarantee that US pricing is set the same way.The government has nothing to do with the pricing of content here, it is entirely on the companies who provide the most the most flippant and insipid excuses to justify their positions. There was a recent gov't enquiry into digital pricing and most of the major companies couldn't even be stuffed showing up, they had to be compelled to attend. The conclusion reached was that there was no reasonable justification for the massive divide in prices and the consumers should actively use VPN services.
So the higher prices in Australia comes from two possibilities
1) problem with the profit per unit vs. the US. I could only say for a Valve who doesn't have to deal with physical travel or B&M store, taxes/fees could be the only possible reason.
2) change in volume with higher prices has a weaker gradient than the US. Basically in the US consumers are more likely to not buy if the prices appear excessively high. So the lose too much volume.