Because not all cities want to sell their souls to Google: http://www.ign.com/articles/2012/09/11/the-real-cost-of-goog...
Edit: Google-washed version of what they demand from cities: https://fiber.storage.googleapis.com/legal/googlefibercitych...
Edit: Google-washed version of what they demand from cities: https://fiber.storage.googleapis.com/legal/googlefibercitych...
Better yet, cities should eliminate them entirely to encourage even more competition. All those rules do is create barriers to entry that prop up the existing players.