Well I think there's some price between $60US and $100AU which is probably where it should be. I am also pretty damn sure that retail competition, or lack of, isn't the reason why there's a gap between prices across different regions. I also don't think that there is a very good argument at all for digital copies to be at RRP rather than at some point between RRP and RRP minus retail and distribution costs.
Pricing is hard because it's more or less one price for the whole thing rather than individual items.... but I don't think what is effectively protectionism put up by the sellers of these products is a good thing for anyone involved.

