There are reports as far back as 2006
, also in 2010
that Vz has scaled back their FiOS installations, and I can only imagine that Central PA. where we are, was included into the Megalopolis that encompasses the Boston, MA. to Washington D.C. corridor that allowed our area to be included into the service areas.
There are areas in Northwest PA. that still don't or won't have it mostly because of infrastructure logistics.
My nephew, and DW have Embarq which is a subsidiary of CenturyLink. They can't get Vz because Embarq has a monopoly in Perry County that is just over the mountain from us.
This is a development of local governments from counties on down to municipalities that were allowed to set conditions before cable providers were allowed to enter, and service their jurisdictions.
There are hundreds, maybe thousands of provider fiefdoms in PA.
We have no usage caps, for now, and one service I really wanted to see is called a la' carte programming
, it would save almost half of our bill, but I won't be holding my breath.
Of the two ISP's you mention I can only say that Comcast was the "big bad wolf" in our area until they saw that Vz was going to make their push with FiOS, and they have improved their service slowly, but surely. Comcast seems to be letting Vz forge ahead, to watch for, and learn from consumer reaction from Vz mis-steps.
Time Warner Cable is, I believe to the East of us, and I don't hear much about them.