You will notice that most of the online retailers of high end zoas, acans, acros, etc, are all located in California. They get in and cherry pick all the nice stuff from shipments entering the country (LAX?) from the Pacific. some of the operations also do some captive propogation as well.
Some of my nicest coral frags have come from individuals from California. I imagine they buy from local retailers, then sell the excess polyps/frags that grow in their tank.
If you are looking in Atlanta for high end acroporas, Keen Reef carries ORA acros. I have a good number of ORA acros from Tim that previously I only saw for sale on Reef Central or from the high end online retailers.
Dave