I couldn't tell you why Emory just now started a CRNA program, but there was definitely a need as the only program in the state (prior to Emory establishing their program) was at Augusta University. There was definitely a need for a program in the Atlanta area and I think Emory has the resources to develop an excellent program.
From what I have learned, they have somewhere between 18-20 different clinical sites, including those with ACTs and CRNA-only practices, ranging from major academic facilities, to outpatient orthopedic (from my understanding, lots of PNB experience), to rural facilities. I think they have found a good mix of quality sites because it is Emory. The one caveat I noticed is that their sites are somewhat spread out in the Atlanta area and beyond but, as your said, this is probably because the area is so saturated with AAs and Anesthesia Residents.
I don't doubt that the cost of the program will be justified by the education received and connections made by being in the program and I am sure Emory's name will carry some weight, similar to Duke and their highly regarded program. This is not to say that Emory's program will turn out better CRNAs over another program, but I think the program may have a broader focus in regard to the goals for their students - meaning more than just the OR.