Yes, Georgia counts for 11% of all visitors to the Orlando area which is incredible considering that's just one state out of the other 49! The proximity makes it a major market hence the Georgia resident deals.
I always ask for Ga/Fla rates and sometimes the reservations have to check with their supervisors but they always come back with an okay!
Note, Ga residents, to remember to bring your Ga license with you for identification. I took advantage of a ticket deal a couple of years ago and they wanted proof of residency. Kids do not have to show any, of course.
Cyn, thanks for the reminder!