Yeah, well what about existing infrastructure? Most new construction already buries the last mile of power.
But if you do have above ground power lines feeding your house, how likely would it be that you'd be in favor of having your entire backyard dug up for a couple weeks while they implemented this huge public works project? How likely would you be willing to shoulder the cost burden? And of course, it's just as simple as digging a trench and burying the lines, right? I'm pretty sure there isn't any buried oil and gas infrastructure in the Houston area.... right?