Yeah the aerial photos that are available on six maps are nowhere near as high a quality image available on nearmap.
A basic package with nearmap is approx $6500 for a 12 month subscription. It goes up from there to about $40,000.00 for twelve months subscription. That does give you access to all of Australia for that price. Way too much for small businesses.
D4D I have asked them for a home user subscription as well but they don't seem too interested.