I think we shouldn't compare prices, since currency is just a little weird thing, since people make the amount of money they need to, and prices adjust to the amount people make.
Explanation:
*** Spoiler - click to reveal ***For example, when i would make €2000 by selling ice cream which is €1 / $1.37 here in Holland, i could go to America and buy stuff for $2755. However, if i would sell the same ice cream in America i would need to adjust the price to how much people are willing to pay, which would be $1 over there and that would be less than €1 (exactly €0.72). That way i would make $2000 / €1400.
Of course it's unfair since i could just get an american account and buy a game cheaper, but compared to each other we lose the same percentage of what we make. (However i only know what the difference is between Europa and America, i have no idea why the hell Australia has to pay like double the price)
PS: Saints Row IV is in the list 2 times (the DLC and the compatibility pack), i'm guessing they should be together