Found these at my local Woolies in Bargara QLD (May be nation/state wide) for $16.
I missed the last Harvey Norman deal for $15 but seeming they have both blue and pink sets for $16 (HN pink sets still available at $19) I figured I'd post.
Confirmed at 2 other QLD stores so please check for local stock.
Have fun kids!
$16 Mega Bloks (80) First Builders, Instore Woolworths
70
Kmart has the 60 piece version for $15 here if anyone is interested in that.