Lehi is much closer to Salt Lake City than San Francisco is to Palo Alto (or, for that matter, Cupertino is to Palo Alto). In fact, you can get from Lehi to Salt Lake City faster than you can get from San Jose to Palo Alto. If you're looking to subdivide regions by a 20 minute drive on the freeway and call one bad and the other good it's going to be a difficult argument to make.