They're pretty nice because you rarely lose power in bad weather, the power tends to only go out on nice days when the backhoes are active.
Long distance HV lines are always overhead though. They would require relatively expensive insulation to be run underground.
Other than the high voltage backbone links I've pretty much never seen power on an overhead.
https://www.google.com/maps/@51.8095473,-1.3123044,3a,89.9y,...
Many years ago I worked with my old man doing some plumbing work. We had to replace a toilet that exploded when lightning hit the tree outside the house. Roots were invading the septic tank and offered a path for the electricity to come up to the toilet. The instant boiling of the water caused the toilet to explode. Sort of wish I had a cellphone back then to capture the images.
No one was hurt but could you imagine sitting there snapchatting when that happened ?