Umart has the awesome G502 Hero for $88 which is a great price, but I live in VIC so I couldn't go and pick it up.
Went into officeworks today, and they price beat it by 5% to bring the total price down to $83.60.
I know sometimes you can wait for an ebay sale where you can get it for under $80 but $83.60 pick up was well worth it my opinion.
I've got the receipt as proof if required, this was at the melbourne central officeworks.
https://www.umart.com.au/Logitech-G502-HERO-RGB-Gaming-Mouse…
https://www.officeworks.com.au/information/policies/price-be…
https://www.ebay.com.au/itm/Logitech-G502-HERO-RGB-High-Perf…
$79