AMD launches their cards on the 3rd November. One site has suggested AMD's current series (6xxx) will drop further in price. I can purchase one now for an acceptable price or wait for them to maybe drop in price and become unavailable. One site I've been watching has recently (2 days?) completely sold out of 6800XTs and won't be getting any more.
There seems to be quite a mark up over US prices in Aus for the new Nvidia 4000 cards.
RTX 4090 (24GB) – AU$2,959
RTX 4080 (16GB) – AU$2,219
RTX 4080 (12GB) – AU$1,659