Seems like a pretty good deal for parking at Sydney Domestic Terminal (as opposed to the long term car park). From the website:
"Jump straight into enjoying your Summer Holiday with parking just steps from the T2 and T3 Domestic Terminal. Get up to 7 days for $99, with additional days just $8 extra per day.
Or, for an even faster trip to the terminal, let us park the car for you! Upgrade to our Summer Pronto! Valet deal for just $5 extra per day.
These offers are valid for stays between 16 December 2011 and 30 January 2012."
Hahahaha - good luck finding people who think that parking at Syd airport is a bargin