Colleton's going to survive just fine, though some (nest)eggs will be broken in the process. The most accurate barometer is foreclosures, and I don't think Colleton has many of those. But selling lots is extremely tough, endless they are very prime locations. Most of those were built early. The solution, as always, is lower prices. However, right now in the Low Country the cost of building can exceed the value of the housing once it's built. Only when the price of existing housing recovers somewhat will the land sales issue start to improve.
That said, this is a affluent person's problem. There are still too many in the low country who can not afford to buy or retain modestly priced housing. Those are the real tough times.