Have a look at the fact sheet for the changes, set to come into effect sometime after Sept 1st
http://auspost.com.au/media/documents/Reform-Fact-Sheet.pdf
Also, an interesting news article:
http://www.smh.com.au/federal-politics/political-news/abbott…
"Mr Fahour also defended his salary of $4.6 million a year - the highest paid public servant in Australia - saying 75 per cent of Australia Post's activity was commercial logistics and it was a "highly successful business". The latest annual report revealed 409 managers and executives at Australia Post were earning more than $195,000 a year"
It is…. and sometimes things go missing, are damaged, stolen from the front door AFTER delivery. This is why you have insurance on items. Tracking isn't insurance.