Seems like the lowest to date according to past deals. https://www.ozbargain.com.au/product/yamaha-yh-e700a
Betta says Free delivery if $100+ spend and you live 20km within one of their long list of qualifying stores. otherwise C&C is always free.
https://www.betta.com.au/free-delivery
Price on Amazon AU is currently $295 as part of Black Friday deals, but I swear I've seen it lower than that.
Probably doesn't have as good ANC as Sony XM4/XM5 models or as good of an app (Yamaha App for E700A has no EQ), but the Yamaha is also cheaper.
Unlike the newer E700B with it's cramped earpads (mentioned here https://www.ozbargain.com.au/comment/14529574/redir) the E700A has some of the largest diameter earpads compared to other ANC headphones.
New E700B Amazon deal has been posted for $247. BingLee has them for the same price and I got a pop-up for $20 off for new customers sign up bringing it down to $227 C&C if you are set on getting the newer model. the newer model's app has customizable EQ.
https://www.binglee.com.au/products/bt-active-noise-cancelli…
the expensive YH-L700A model also seems to be at an all time low of $335 Shipped.
https://www.amazon.com.au/YAMAHA-YH-L700A-Headphones-Listeni…
https://au.camelcamelcamel.com/product/B08QC9RB7L