@donn bly - you seem quick to forget
That municipal broadband schemes are a reaction to the cable companies failures to provide the coverage and service levels that they promised when they were granted their licences. Without incentive to compete and improve their service they have rested on their laurels while most of the first world passed them by.
Put another way, they demonstrably weren't investing beforehand, so any argument that municipal broadband stops them investing is purest bullsh*t.
