Travellers have been screwed over by Sydney Airport Maxi Taxis/Cabs various times in recent years, if internet forums (and a recent experience by DMARGE) are anything to go by.
Picture this. You wander out of Sydney Airport Arrivals feeling dishevelled, dirty and in need of an extra strong oat flat white. You roll up to the cab rank wanting a no-fuss trip to the office. After the last 24 hours of armrest fights, outlandishly expensive airport beers and flight delays your reserves of patience are on their last wafer.
You get to the front of the queue and the guy who runs the rank directs you to a Maxi.