Thanks to sparkyglo's comment.
iPad Air 16GB Silver is only $399 when you spend $100 in a single transaction in store. There's no exclusions noted, so buy some Big W gift cards or something. However, customers haven't had success with this option (see comments). Limit of 1 per customer.
Price will also be dropped to $429 if you don't spend the $100.
Thanks OzSikhs for reminding me about CashRewards's 5% discount on Woolies eGift Cards, usable at Big W. Total price would be $379.05.
Currently $569. Stock levels looks great for all capitals.
Not bad, Apple sells it for $569 still.
A decent tablet for $400 although it is two years old now.