I cant find any suggestions that people living in areas where the electricity is provided by a municipal monopoly are unhappy with the service or wish they had a commercial operator running things.
Even though I am not within the city limits and cannot vote on city matters, I am still required to use City of Austin electricity.
My last house was also outside the city limits but was not inside the boundaries of the City of Austin electricity.
When I could select my provider, my per-KWH cost of electricity was much lower.
Austin has a very strong green party lobby and a very progressive cost structure for electricity(first 500kwh are less than half the price of the second 500kwh and after that it climbs rapidly, not to mention various fees and such that are tacked on to fund various things I did not get to vote on)
As such I am subsidizing the nearby city of Austin with my power bill and paying for my MUD with my water bill.
I would be more than happy to go back to having a commercial electrical provider were it permitted in my area, my commercial provider was quite happy to adjust my billing cycle to allow me to pay all my bills when I want to, as opposed to City of Austin electric which has refused with some claim about my billing cycle being determined by when the readers are scheduled to be in my area and cannot be adjusted by so much as a single day.