Pushys has this on their store for $399 (RRP $529), combined with the PLAY100 deal, takes it down to $384.99. Seems the best price at least this year.
Also price match $379.05 Pickup @ Officeworks (thanks gnarlyman), but you'll need to show them from Pushy's website: https://www.pushys.com.au/gopro-hero7-black.html
Was on the fence with recent Hero7/8 Black deals, and just pulled the trigger, thought I'd share. About time I gave back to this community who have saved/made me spend so much.