Going back a few pages and Tyke, you said you don't get the postcode pricing thing. Its not just postcode, where I live for example, one side of a main road is more than the other.
if an area is cheap there is a reason(s) for it
The further south you go the cheaper and more undesirable the area to live. Just like the North.
East is most expensive and for a reason. I would love to live Eastern Suburbs, but it's too expensive.