As of September 2015 there are 3567 LPV (WAAS) approaches at 1739 airports in the US. ASA can rip out most navigation aids in Australia but replace them with..........nothing. Why are LPV approaches not available in Australia? For a relatively low price, significantly lower than installing and maintaining ground based aids, a huge improvement in safety could be realised. Instead of having casa contacting pilots and asking them how they got into an airport when they suspect the weather was below minimum they could focus on delivering a service and fostering the development of GA.