There are a number of benefits included with booking the World Cruise on Azamara. You can see whats included on their web site. But booking has to be done by contacting your TA or Azamara directly. It shows each segment, but not booking the entire 155 days on the website. Also if you book while you're on your November cruise, you might get some more obc.
I see you're from Tasmania. We had a wonderful week in Tasmania in 2018 before we boarded the Azamara Journey in Sydney. Would love to go back to Tasmania.