Read Jan's latest book ...More Wealth etc ... You'll find most of the background info. you seek in it.
In general, the "average" property market does not "go bust." It tends to level out as affordabiltity starts to max. out. (Affordabilty is a function of interest rates, property prices and wages) . The top end (call it prestige) million dollar plus sector goes up the most during the cycle , and then comes down the most. But if you follow Jan's method and stick to "around median" priced IPs the past history (like late 80's/early 90's when interest rates hit 17% etc) shows values tend to flatten. Also selling a property takes longer over this period . Of course, there will always be some who bought too late/paid too much etc who will be at the mercy of the market if they HAVE to sell.
Don't become a forced seller.
Not buying from the Sunday Age feature is possibly a good way to avoid being in that "herd".
LL