I bought car in June 2009. May 6, 2010 I was told that the rear brake rotors were rusted from sitting too long - $49.99 Labor.
Now, Sept 27, 2013 - rear brake components were cleaned AND rear brake rotors were resurfaced $268.00 labor. I was also told that this happens with low mileage 23,894. I can email a copy of the invoices if you need them.