Usual price is ~$449. Currently next cheapest price is Myer eBay for ~$350 after 20% off eBay coupon.
For those looking slightly longer term with Nespresso capsules and also to froth their own milk.
Nespresso currently have a Father's Day promo1 of 100 free capsules (until 30/9).
JB Hi-Fi are doing this for $299 plus a bonus $50 gift card.2 When I bought mine there was some resistance from sales staff as the machine is already so cheap. Website states it comes with one so I got it, but they might change it soon so YMMV.
Amazon also have it for $299 with your choice of cashback (8% at Shopback).
Don't bother pricematching at Myer, as it's below cost price.
Bonus $50 Gift Card!
Buy this selected Breville product and get a bonus $50 JB Hi-Fi Gift Card! Online purchasers will receive a gift card via email 2 weeks from order completion. In-store purchasers will receive a coupon at time of purchase. Offer valid until 30/9/19. ↩