Compare the attached maps. All at the same scale.
West to East:
Watercolor doesn't have a lot of parcels south of 30A. And look how far you could be from the beach.
Seaside doesn't have many parcels south of 30A, and the traffic is crazy.
Seagrove has a lot more parcels south of 30A, yet so close to the amenities of Seaside without the chaos. That's why we built our home there.
Rosemary has a lot of properties south of 30 A, and even north of 30A there is okay because the traffic isn't crazy there. It has plenty of amenities if you don't want to drive anywhere during your week.
I didn't mention Watersound. A great place for owners who don't need to rent, but you as a rental guest would be driving elsewhere a lot to meet your needs.