Austin's tech scene is heavily concentrated around a few large players (Dell, Tesla, maybe Oracle still?), and the startup scene, while active, is very hit-or-miss. Atlanta has a more diversified corporate landscape, and while it might not have the same 'prestige' as Austin in some circles, the sheer number of Fortune 500 companies with tech divisions provides stability. Consider your risk tolerance and preferred company size. The cost of living difference is shrinking fast, so that shouldn't be the only deciding factor.