Interesting... I've only ever heard of brain drain used in an international context. Which is where the US comes out as a winner, as we're gaining from all the highly educated Chinese and Indians who come here to work and start companies. I actually find the concept rather odd to use domestically, because it's generally used to show a contrast between a country paying for your college education, and then you reaping…
And you have some pretty good schools to choose from here: University of Georgia, Georgia Tech, and Georgia State (which has improved a lot in the past 10 years).
There are plenty of fair criticisms that can be leveled against the HOPE scholarship, but it seemed clear to me that it would reduce brain drain in the state, simply because students could get a high quality education at almost no cost. But these data show that the drain ratio increased from 1990 to 2010.
So this is a situation where students aren't paying for their education, are going to school in the state where they likely grew up, and then are still leaving.