Ausprop you say Mining is going off in a big way, but in Perth we're yet to experience the trickle down effect like we did 4 years ago. It may take a bit more time but i think there are a number of factors here worth considering - and Aaron Sice may have more info to back these up;
1. Less people are migrating to Perth than previously. They are happy to FIFO from the east more so than they were 5 years ago, perhaps it's the Perth property prices that give less incentive to relocate. Over Christmas I was speaking to David Flanagan from Atlas who said he had equal share of staff flying from all over Australia.
2. It's a buyers market in Perth with up to 17,000 homes for sale, way over the average 14,000. I don't believe the property shortage is real, at least not at the moment. In 3 to 4 years though we're likely to experience another land shortage as new projects are being held up by the banks.
3. The physical retail sector is suffering as a result of globalisation and their slow reaction to change and capture market share. It's as simple as that. Online retail is going great.