On the subject of overcharging - you have to love the inflated parking charges.
Over here in Adelaide you can park your car on the street in the CBD for $1.10 per 4 hours, while at the airport they are charging you $2.00 per hour. It's not too bad if you are only collecting or dropping of a passenger as it should take less than an hour, but it's got to start hurting the passengers who are parking their car for a day or so.
I guess they have to find some way to pay for the new airport terminal. 
Cheers,
Capt EFIS.