This is definitely a huge factor. I only graduated a few months ago, but I can count on two hands the number of friends I have that still live in Georgia. So many of us get great jobs that require us to live elsewhere. I live in Seattle myself. I don't prioritize much over Tech football, but career is certainly one of those things. Sadly, the wisest career choice for me now meant living too far away from BDS to make many games.
In spite of that, I will be in Athens this Thanksgiving, and I will be giving those dawgs hell, win or lose. That has to count for something!
I think the exception to this is the student section. While I was a student, I stood for the duration of every single game. Showed up before kickoff and left after horse, never sat, and yelled like hell when Tech was on defense. I think most able bodied students should be expected to do the same, personally.