Charles gave you a really good answer. Southwest, like most of our outlying area, is pretty diverse. What had traditionally been sparsly populated with pretty modest homes, has become home to some pretty seriously upscale communities (Cliffs at Walnut Cove, High Vista). While there are certainly some homes in the 400k range, most probably fall below or above that range! It is a beautiful area that encompasses a lot of National Forest land, and some of the best and coolest mountain bike trails in the Southeast!
Let me know if I can help.