Regular price on Amazon.com is $499.99. Currently selling for $449.99 + $95.73 delivery. I used a rough currency conversion of US$1/AU$1.04 to accommodate for any credit card charges (last price from rba.gov.au was $1.0615).
This model is not actually available in Australia. The model down is the Pioneer VSX-1021 which is currently available from JB Hifi Online for $795.20 here (ends today): https://www.jbhifionline.com.au/hi-fi-home-audio/amps-receiv…
I just popped down to the local JB and they will not budge from this price. Your mileage may vary.
You can see the difference between the models from the link to the Amazon page (more power, more hdmi, internet radio features etc).
Please note, this is from the US and my research suggests there is not an auto-switch to 240v. This means you will need to get a step down transformer. Something like this will do (don't forget to use your 10% off eBay voucher that ends 02/02 - for those who received a voucher from ebay): http://www.ebay.com.au/itm/240v-110v-Step-Down-Stepdown-Tran…
So for ~$600, you can get a reasonably better amplifier at ~$200 cheaper.
Alternatively, if you don't want to muck around with transformers, this is a good deal (thanks Third_Gear): http://www.ozbargain.com.au/node/60111
But note that the VSX-1121 is more comparable to the NR709-NR809 on the food chain.
Caution: As this is an overseas unit, do not expect any local warranty support. Especially since this unit is not available in Australia as far as I know.
Mod: added product name to title
Good price but what about warranty? I doubt Pioneer Australia would touch this, especially as you need to use a step down transformer.