Much better than I expected. This price is pretty much a straight conversion at current exchange rates
Remove GST = AUD$6635
USD price =$4999
Conversion 75 Cents USD.
Current exchange rate 77 cents USD
The price must have been set a week or so ago when the exchange rate was closer to 75 cents.
Most of the time Apple seems to give itself a generous buffer, up to 10 cents exchange rate (eg 67 cents) as a way to manage exchange rate risk and high local operating costs - and apply Apple Australia tax of course! Apple must have realised the current rising demand for iron and coal will most likely jack up our exchange rate over the next year or so. So this is probably the best relative price it is likely to be.
The iMac Pro is way out of my price range, much more than I need, but by all accounts competitively priced for what’s in its guts. I would expect workplaces that need this kind of power would be very interested, get the configuration they want and just replace every three years. Smaller enterprises not so much as those might want upgradability to extend its life beyond three years. They will have to wait for WWDC 2018 and the real Mac Pro.
Just for fun I fully tricked out one with 18 cores, max GPU and storage. $20,419. That configuration works out at USD71 cents.
Also, AppleCare $199! A no brainer.