In the US west coast latte sipping areas it has swung back towards locally grown, with farmers markets attracting large crowds.  So there is hope :)

Farmers markets were just taking off 2 years ago in Melbourne but they mostly hadn't worked out the important part that you need to run every week to be useful.

Of course living in Brisbane you'll struggle a bit to get strawberries and tomatoes as they are cool season fruits (more so apples and pears).  On the other hand, you can try more tropical fruit and veg.  Jerry Colby-Williams has done quite a bit on growing food in Brisbane on Gardening Australia.