As a Charlotte, North Carolinian, I'll chime in.
First, I'd never heard of this list, cited earlier:
http://www.ncgolfpanel.com/courserankings.cfm#1. I agree with the others who find it somewhat off-base. But then this is a subjective matter, isn't it?
Second, I'd say we've got about the same mix of courses as many other populous states (No. 11 in the 2000 census). ODG courses, especially Ross as Ed Oden points out, resort courses, real estate development courses, municipal courses, "old-money" private courses, "new-money" private courses, mountain courses, parkland courses, seaside courses, and so on. Like a lot of states, we've probably got a few too many courses -- a good number of which won't be around in five or ten years -- including some that are "highly rated." I'm not going to name names.
Third, when I moved to North Carolina 44 years ago, or shortly thereafter, the state's tourism slogan was "Variety Vacationland." A cliche, to be sure, but that's golf here today. Another cliche, "the good, the bad and the ugly."
Fourth, I could write a small part of a chapter of a book about golf courses in North Carolina. I know more about Charlotte (and the mountains, as contrasted with the piedmont, including Pinehurst, and the coast). We have the "old money clubs," the "new money" clubs, and the wannabe clubs. We have three Ross courses, all at private clubs, and all substantially modified over the years. As you'd guess, my club, Carolina GC (Ross 1929), is by far the best bargain (where the legendary Charile Sifford learned to play, and, in fact, played nine yesterday).
We've got municipal courses in Charlotte with some nice desings, in my view, but with poor maintenance and management. In the metro area we also have a substantial number of privately-owned public courses, including the Doak-designed Charlotte Golf Links.
Computer acting up -- got to go.