@Rich Englehardt....I have Cox...download speed is about 70Mbps (at best).
And you are right, I could switch my phone to the Cox lines.
But here is something that a lot of people forget: with the "Phone company" LL I will never lose service when I lose electrical power.
For those living in AZ, especially the lower elevations, I will say just one word: Monsoon.
Power goes out and I still have a phone.**
And Cox has said that if a customer loses power the Cox equipment won't work.
Yes, folks with cell phones (and only cell phones) also have power...until the battery dies. Then they charge it from their car battery... but I'm not keen on that either.
As people age (and I'm no spring chicken) they often give up driving, and so give up their car(s). So now they don't even have the car battery to use (just looking ahead...)
**Power has never gone out throughout the entire metro area which is sprawling.
If a Century Link hub is shut down for whatever reason, service is handled by another section.
IN 40 years I have never lost LL phone service.
It's kind of reassuring; until the CenturyLink infrastructure (in my neighborhood) completely fails I will keep the LL.