Saw this in store at Kmart Marrickville Metro, NSW. At least ten units in store there at time of visiting this evening. https://files.ozbargain.com.au/upload/173652/55471/img_20180…
Marked as "Clearance", and no longer seems to be online at Kmart.com.au nor the Kmart store on Ebay.com.au.
I would assume it would be this price at all Kmart stores that have stock.
[EDIT Employee has confirmed Nationwide]
It has previously been this price before Christmas at Kmart.
And has been posted here at $80 after the now-expired "anniversary 20" coupon code at Myer before Christmas - it is currently $149 at Myer.
EDIT
Further LEGO sets are in this Clearance, including some DC Super Heroes Girls and Batman Movie sets.
EDIT 2
Efendy has noted that this is also available at Target for $90.30 and is on their website which should be useful for pricematching at Myer or Big W or whoever has stock near you.
https://www.target.com.au/p/lego-reg-friends-amusement-park-…
As well as all Lego Batman movie sets are on clearance making space for new sets arriving later this month.