I think it's inevitable, even though they know it leads to increased house prices, after all way back, before the current increase, the federal housing minister stated:
http://www.news.com.au/heraldsun/story/0,21985,25285409-664,00.html
and then they promptly increased it
well said Trevor....
confirms one of Ronald Reagon's greatest lines:
"The nine most terrifying words in the English language are: 'I'm from the government and I'm here to help.'"