This one I am qualified to answer because I work in Tennessee. Tennessee state budgets have not faced the fiscal crisis similar to North Carolina in recent years. Their sales tax is 9.5 or 10, and no income tax, and very little if any gas tax. North Carolina is one of the worst managed states in the country. NC has income tax, gas tax, and sales tax, yet their budget shortfall every year for the past few years has been huge. Tennessee just keeps humming along, and the roads are a helluva lot better than NC's too, since NC diverts the Transportation fund from the gas tax to other areas unrelated to roads!
Now, back to the economic discussions....have enjoyed reading the comments and learning from people who know more