Amazon Prime members get additional discount when added in the cart. It shows that you get additional 10% discount but seems to be more than that.
For 5.7L the list price is $141.90 but when added in your cart you get additional $14.19 which makes it $127.71
For 8L the list price is $157.90 but when added in your cart you get additional $15.79 which makes it $142.11
Seems to be the cheapest so far.
The air fryer one seems to be $309, which isn’t the cheapest it has been but seems to be discounted
https://www.amazon.com.au/Instant-Pot-Multi-Use-Pressure-Sta…
If you have prime this comes to $278.91 at checkout.