Actually I'm pretty sure if the dollar is valued less, it's considered weaker, not stronger.
In any case, we already do pay more, steam is priced in USD already, and on top of that, a lot of games by certain publishers (2K, Activision, CD Projekt) are not listed as $60 USD in Australian stores, they're listed considerably higher for certain games, example:
| Game | AU Price (USD) | US Price (USD) | % Increase from US |
|---|---|---|---|
| Call of Duty Black Ops 2 | 89.99 | 59.99 | 50% |
| Civilization V | 69.99 | 29.99 | 133% |
| XCOM Enemy Unknown Complete Pack | 79.99 | 49.99 | 60% |
| Wolfenstein: The Old Blood | 39.95 | 19.99 | 100% |
| Witcher 3 | 83.99 | 53.99 | 56% |
| GTA IV Complete Edition | 79.99 | 29.99 | 167% |
| Civilization Beyond Earth | 89.99 | 49.99 | 80% |
| RUSE | 49.99 | 9.99 | 400% |
| Dishonored | 44.99 | 19.99 | 125% |
Now considering that currently Australian dollar is 27% weaker than US dollar, just from exchange rate alone, you might factor in perhaps 30% increase in price, except that it's already listed in USD. Lets now factor in average income (because using the minimum wage argument is just inaccurate), where Australian average income is approx $42,000 USD and US average income is approx. 45,000 USD. This is just raw income, not factoring in things such as rent, mortgage, bills, food and other living expenses, which would remain fairly similiar, though slightly higher in Australia. Which means actually we should pay a little less (negligibly so, but still) or the same as the US, seeing as it's in USD, not AUD, in order for it to be fair.
Fine whatever, our import taxes are higher, cost of business is higher in Australia etc., but that still doesnt excuse the markups of 100% or more in some of these games. Granted, a lot of the insane markups are from older games, but it's still inexcusable.
So please tell me, why exactly should we pay more, because that is clearly not how it works.