The regulatory environment, private/public ownership intermingling, geographic terrain, and related infrastructure (roads, buildings, etc) make it quite difficu

The regulatory environment, private/public ownership intermingling, geographic terrain, and related infrastructure (roads, buildings, etc) make it quite difficult to assess that. They all vary from one location to the next, and it makes it quite difficult to penetrate. The larger the city (read: >1M residents) the far more entrenched incumbents are.