The Microsoft Store on eBay currently have the Xbox One X for the cheapest price that Australia has seen.
You can currently get the Xbox One X with either Star Wars: Jed Fallen Order or Forza Horizon 4 for $399 which trumps any deal that we saw on Black Friday. You just need to use either of the below links and plug in the code ‘P20SURFACE’.
Naturally, you might want to wait a year for the Xbox Series X, which was just announced on Friday.