Firstly thanks to everyone whom has chimed in, this has been very informative.
Based on the feedback I'm nearly 100% certain this must be a back-haul line, and I'm nearly as certain that the mentioned Metro E either won't be available or would be cost prohibitive for me.
Someone had asked how far away the closest service is from my home (I think that was the question). AFAIK about 1/4 mile up the road some folks have Comcast.
I stopped in at the local Comcast service center the other day to inquire about this also, but they don't let you speak to anyone that actually knows what's what...but they were friendly and got me a ticket. The lady I spoke with said that my past requests for service indicated I was file miles away from the "cable plant" and that made me un-serviceable, but I guess they'll check again (maybe 5th time is a charm).
I've also looked up the details on the Montgomery County franchise, and the population density for where my home is almost certainly does not meet the level needed to require Comcast to provide service.
I guess I'm just one of the millions of Americans that will be doomed to either live with satellite data caps and meh service or to live without the Internet.
The shroud of the dark side (aka the last mile problem) has fallen.
Sigh...any other ideas?