> You didn't respond to my point about politicizing investment decisions. Utility investment decisions are intensely political, and voters don't care about better technology, they just want cheap rates. Its a huge battle for most utilities to raise the money they need to upgrade the network, or even just maintain it properly. If you think Comcast is slow to upgrade its network, what do you make of utility companies that are operating coal plants that are literally a century old? The fact that public utility regulation has left us $3.6 trillion underfunded is totally ignored by proponents of municipal internet service.
Electric utilities cover large areas. You use Excelon as an example, who delivers my power in Northern Illinois. As you say "..[they] just has to maintain wires built decades ago." It's not just wires. Its transmission facilities all the way from 700kVa down to the 120V step down in your neighborhood, even to your service entrance.
Internet access is no different. You trench fiber in the ground, you drop equipment cabinets on the curb, and you pull your plant to your CO for interconnection to your routing/switching gear (although sometimes this gear is distributed across the plant instead of at the CO; depends on size/network topology).
My municipality or coop not upgrading fast enough or providing the service I want? I argue I have more leverage in that case as a share/stakeholder. With Comcast, they're out for the shareholder, not me.
As I've said elsewhere, almost all other utilities have functioned well in a regulatory, profit-restricted environment. Why not last-mile packet delivery?