I bought the NR1509 as I won't be making use of 7.2 or Atmos anytime soon, but $850 for the NR1609 looks like a very good price.
NR1509 - https://www.jbhifi.com.au/marantz/marantz-nr1509-5-2-channel…
NR1609 - https://www.jbhifi.com.au/marantz/marantz-nr1609-7-2-av-rece…
I also picked up a pair of KEF Q350's for $819 including the magnetic covers (price matched from Clef in Melbourne)
Great taste, running the 1607 into a Kef 5.1.2 hopefully 5.2.2 setup soon :)