I wouldn't say it was basic supply and demand but rather legal tender laws. One cannot purchase property in Oz with US$ our Euros that I know of.
The Perth mint makes 1$ legal tender silver coins which contain 1oz silver and sell for about AUD25. If I have an investment property worth $1 million and if I sell it there will be a capital gain of $500000 on which which the ATO will tax me.
Q: can I sell my property for AUS 33300 with payment in 1Oz $1 Perth Mint silver legal tender coins and claim a capital loss?
