I checked out some model homes at WSN last week. Good amenities and a lot of house for the price. Also good lot prices. They have several builders on board and some awsome prefab houses. Don't be fooled by the fact that they are prefab. They are VERY nice and priced right. They are marketing to permanent residents and true second home buyers rather than as a resort. So if you want to feel like part of a community it is a good choice. When you are close to the beach you may just have a different set of neighbors every week during the season and none the rest of the time.
This is a very good point if you're looking at it as a possible retirement home and don't have plans to put it in the short term rental market.
As others have mentioned, there's something to be said for living a little bit back from the spring and summer madness. We rented down at the beach for the first couple years we lived here, but when it came time to buy, we went inland because we wanted to be able to come home to a more cohesive community where it was a little bit quieter, even if we are across the bridge from the beach now.
Seacrest is a beautiful place, but it's very very busy, and the homes are so very close together.