Not the cheapest, but you can bring it down further with gift cards if you have for Amazon, eBay or Myer.
I had $45 Myer credit ($15 Birthday voucher and $30 from reward for spending last year).
I also had Prezzee gift cards I got from the deal earlier @10% bringing it down to $320.
When I receive the airfryer, I will claim $50 which will bring it down to $270 for me.
I'm aware this won't be the case for everyone (not everyone is going to have Myer credit), but I still thought I'd share it here.
Expired:
Myer
I have this air fryer. It's quite good and easy to use. For any particular cooking instructions, I find that I use about 30C less temperature and 2/3 time as compared to a regular convection oven.