I was looking for Samsung Note 8 deals and came across the Optus limited time offer. You could get this at any Optus store or online chat. Second service 25% discount has ended as of 03rd September 2017.
You also get the pre order convertible fast charge wireless pad and Samsung Assure one free cracked screen repair within first 12 months, directly from Samsung for all pre orders. Once purchased you need to register via Samsung site and app.
They have the Leasing plan on special usually $130 and now for $100 per month. You get the Note 8 on this for $0 handset repayment . With 40 GB data, (You can also go for the NON Leasing plan, where you own the handset after 24 months. $10 extra per month for non leasing plan ($110 per month) and data is 30GB per month) both plans have the following inclussions - Unlimited standard national calls and text, upto 750 international minutes to selected countries, unlimited international roaming talk and text on zone 1, 1GB international roaming data on zone 1 and included entertainment.
Also if you are an existing Optus mobile customer and you are porting in one of your number from another provider or add a new service you get 25% off on the above plan. Which comes to $75 a month on leasing and $85 on the non leasing plan.
Also you could return the handset after 12 months in good working condition and pay $99 to upgrade to another new handset on 24 months contract.
Even though it's leasing it doesn't that bad, but I think most people can get by without using 40GB mobile data.