Alcohol taxes / excise are controlled at the federal level in Australia. In WA I think the high cost is 1/3 ridiculously high rents, 1/3 high minimum wage and other costs, and 1/3 operators screwing the public because they can.
Higher median wage in WA than other states + higher operating costs to venues (WA liqour licenses used to be the most expensive unsure if this is still the case).
Wouldn't a higher median wage be more profitable for the operators though? They were all paying minimum wage the last time I was involved (which was many years ago), but they'd have been benefiting from the influx of FIFO money since the start of the mining boom?