I've mentioned this before but I'll provide the abridged "real life" example yet again which is an indicator for the Perth market;
Sold our family home mid 2006 for $800K, it's on the market again with nothing having been done to it, not even coat of paint!
First listed around 10-12 weeks ago for; From $960K now it's been listed with another RE firm for $820 - $850K which is IMO still not achievable.
Moral of the story; changing houses (Principle Place of Residence) as Australian's do on average every 5 years, is going to hurt you in the hip pocket if you're timing is out.
As a long term purchase it's not going to matter given the longer timeframe "in the market."
