Being stationed in Washigton and SC, I can attest to the fact that the cost of living in Washington is prohibitive compared to SC.
Blue collar families will find SC a much better place to live.
How well I know that, having lived in most Southern states at one time or another and in some Northern states also. The South is much cheaper living and friendlier. I love S.C. & have relatives there. Hope the richness of Boeing doesn’t spoil the quiet Southern cultural richness.