I work from home, so if I didn't have an elderly parent in NJ, I'd be gone already - even if it was just to hop over the border into friendlier, less expensive Pennsylvania.
The gun issue, though certainly important, is merely one tiny slice of everything that's wrong with the state - a trend toward increasing gov't control and decreasing individual freedom cuts across MANY issues. The cost, bureaucracy and aggravation that results from that trend is just not worth the "benefits" of living here.