Ahh, you are missing the point totally, that extra Aussie tax is the thieving a---holes who are the wholesalers,( aka - middlemen who need to get rich overnight) they add on 100 to 150 percent of the price that they buy the item for.
It is because they can and do add on such huge mark-ups and get away with it.
Why is it so dear to buy an item that's made in China and sells in America for a reasonable amount of dollars, then that same item sold in Australia is nearly twice the bloody price ?
Have a look at these two items below and tell me why the Aussie one is SO much dearer, can't be shipping, as Aust is much closer to Asia than America.
https://www.ebay.com/itm/0618-550W-M...QAAOSw4OFeFBcM
https://www.ebay.com.au/itm/7-X12-Mi...wAAOSwcDBeE5Qx
Now if you haven't noticed huge mark-up differences like those two, then perhaps you need to visit Speck Savers.