Comment Re:Aerial or underground ? (Score 1) 516
Buried cables have enormous costs that you are not accounting for, number one of which is insulation. Look at those power wires hanging on the poles. They have no insulation coating, just bare conductor (if it's insulated, it's a phone line). Imagine how much more the same length of power wire is going to cost when covered with enough insulation to be safely buried. There are untold millions of miles of power line.