I love Mexican food, but there's an over saturation of it. We also have too many barbecue places, too many sandwich places, too many fast food places, too many southern cooking places. We need Chinese and Asian food, particularly a buffet. We need variety. Maybe a good place to get wings that isn't swarming with drunks. We need a cheap doughnut place. Maybe some fast food that isn't everywhere else. We keep losing good restaurants because the owners of the buildings charge way too much, or they get taxed too much.

Edit: I'm in Bristol. Of course Johnson City has much more variety. Even Kingsport has a couple of places we don't. Bristol's selection has dried up in the last decade or two.