Because it costs a small fortune to underground them, for one. I'm in a city of 150,000 where we are about 20 percent undergrounded. We just got an estimate on doing the rest of the city: a mere 200 million dollars.
Second, undergrounding isn't necessarily a solution. Underground transformer vaults get flooded and short out. When an underground transformer blows, it's more of an 'event' than just losing one on a pole.
Jarjar Binks (D-Mars) blathering on about the Fed responsibility for the fuel situation.