Looks like Optus are doing similar to Telstras New Phone Feeling and offering a "New phone Trade Up". Noticed today when going to buy a phone online.
After 12 months, hand phone back and pay $99 to trade up to new phone
http://www.optus.com.au/shop/mobile/phones/new-phone-trade-u…
Valid for people signing up from 11th March. May be good for anyone contemplating getting the new Galaxy s7/Edge, added bonus at the moment for those that missed out on the bonus VR headset when pre-ordering, online orders still get the bonus VR headset.
In these cases I have found it was actually better to terminate my 24 month contract after 12 months (usually only have the pay the remaining handset repayments if you are re-contracting, payout depends on what phone you have, my last was an iPhone 6 64GB which I had to pay out $450), then I own that phone outright, which I can sell for more than the contract payout figure. Then I can take out a new 24 month contract for the phone I want, and continue that cycle for a phone refresh every 12 months if desired. There are also some sneaky terms in those trade up/new phone feeling deals that made them seem not super worth it, for me at least.