I don't regard 98.9 FM as a waste if it is playing classical music, which no other station reaching the market does (I could be wrong about whether a Charleston station does, but I haven't had a lot of luck with it.
96.7 FM is the one station playing good Christian music, even though it's only part-time, though the talk programming and church services and such are good too, and probably unique to the area. Actually, now that I think of it, WSTS at 100.9 FM has some good music and church services or whatever.