128GB SSD version (default one on the website) is for $749. If you need the 256GB version, you'll need to click on 'CUSTOMISE' button and change it to 256GB instead, which will change the price to $799.
More importantly, Shopback.com.au has 12% cashback and Cashrewards.com.au has 10% cashback on Lenovo at present.
12% cashback changes the effective price of 256GB model to $703 and that of 128GB model to $659, FYI. I am not sure how long it takes to receive cashback from Lenovo though.
My cashback is expected to arrive in February 2019. Purchased 2 weeks ago.