Unless you want crab legs, (if you want to eat crab legs, it is worth it even if it is $25 or more) buffets are usually sad, they just can't really keep the food hot. There is a little seafood joint in Little River SC, on the water.
It is a great little local place, for raw bar, seafood, wings, beer etc. Or I would cross the NC/SC border and go to Calabash and eat at the Seafood Hut or Ella's across the street. Have a great trip!
Well, as a SC native with parents who've lived at the coast for years, I have to tell you that "yummy" and "seafood buffets" are pretty much mutually exclusive. :)
If you want good seafood, go to a real restaurant where they care how the food is prepared and where you have a good chance of getting fresh, local catch, not frozen, pre-breaded stuff.
If you're willing to drive just a little bit straight down Hwy 17, Murrell's Inlet has several great choices, and the quality is in a totally different league from a buffet.
There is a thread from Sat. or Sun. with several Murrell's Inlet recs.
If you want really good seafood I would not go to a buffet. For a $27 to $35 buffet you can get a great meal at places like Divine Fish House, Sea Captain, etc.
If you are looking for quantity versus quality, however, I would recommend Original Benjamin's on Restaurant Row. Also -- you can go to restaurant.com and get a discount certificate for this restaurant. Buffet runs around $27 and you can get a $25 certificate for about $4 (look for discount codes on line).