Alex Marshall, Senior Fellow at the Regional Plan Association in New York City, recently asked why more cities aren't building fiber-optic broadband networks. The subtitle: "Don't wait to find out if Google will install broadband in your city."
He correctly notes this is not a new argument - cities have run utilities for decades (and been attacked for it regularly throughout).
Infrastructure is one of the primary ways that towns, cities and states can make themselves more competitive. Build the right thing at the right time, and new residents, jobs and businesses will come. But this terrain is rife with strife. A century ago, towns and cities started public power companies, and saw private power companies resist such efforts in courts and with legislation. Today many of these public power companies are doing quite well, thank you very much, as exemplified by the Los Angeles Department of Water and Power and others in small towns.
This is not your standard argument for cities to start building networks - Alex makes some novel points and the short column is well worth the full read.