Unless Sydney teams make all three GFs, this will go down as one of the strangest and stupidest decisions for both parties.
Depends on how much money they get just from the Destination NSW funding against what money they'd have gotten thru the gate from ticket sales for the "home" team hosting the GF.
The past few year's attendances -
2022 Grand Final - 22,495 (AAMI Park, Melb City v Melb Victory)
2021 Grand Final - 14,107 (AAMI Park, Melb City v Sydney FC)
2020 Grand Final - 7,051 (BankWest Stadium, Sydney FC v Melb City)
2019 Grand Final - 56,371 (Optus Stadium, Perth Glory v Sydney FC)
2018 Grand Final - 29,410 (McDonald Jones Stadium, Newc. Jets v Melb Victory
2017 Grand Final - 41,546 (Allianz Stadium, Sydney FC v Melb. Victory)
2016 Grand Final - 50,119 (Adelaide Oval, Adel. Utd v West. Syd. Wanderers)
2015 Grand Final - 29,843 (AAMI Park, Melb Victory v Sydney FC).