Electronics:
SYD is uncompetitive with mainstream retailers, though some sale items may appear tempting.
Items like cameras are better bought elsewhere and the tax refunded airside at the customs taxback desk.
Having shopped for a camera the afternoon prior to a trip through SYD and MEL, the normal SYD prices were generally RRP and above the generally discounted prices on fast-moving cameras like the Nikon Coolpix series.
Price of my camera was 1/3 higher than what I paid and the same or more than most George St retailers.
I could only recommend shopping in SYD DF while drunk.
Fortunately, most of the time there will be some kind of alcohol pushing, so the shop knows this is the case too.
Not much aside from drinks was selling, despite rhe inept efforts of some
know-nothing sales staff. Klink, clink.
