I stayed at the Atlanta Airport Marriott (the one nearby - not the Gateway Marriott connected to the Plane Train at ATL). And guess what? They comped my $16 parking fee and also gave spouse, 2 kids and me free breakfast vouchers. A lot of times the hotels give vouchers for only 2 people, so this was a nice perk. I was very pleased about the parking even though it wasn't a lot of money. I would love to see more Marriott properties follow this trend!