Pretty sharp deal @ just over 25% off RRP, I cant recall having seen it cheaper. TRU have sales on a lot of Lego sets at the moment but this was the pick of the bunch for me.
This set is also on the list of expected RRP increases for Lego over the next couple of months (and has already gone up 20% in USA. source: https://jaysbrickblog.com/news/partial-list-of-lego-sets-inc…).
Note that any RRP increases for AU are still speculative based on international info at the moment, and may not eventuate here or may vary in amount from overseas markets. Still a solid deal either way.
It was $112 at ShopForMe just last week. (30% off). But sold out. Other than that these seem to not sell too quickly so I wouldn't be surprised if we see 30% off again soon.
But you have a good point about price rises. If RRP goes up, hard to say when it will be back to $120 or less.