Demand for Youtube and FB are so high and ubiquitous that
pretty much any ISP will immediately cave in.
Yep, Comcast better be careful lest I leave them for the 6mbps competitors I have as options in the backwater community I live in called Berkeley, CA.I utterly fucking loathe Comcast, and yet they get thousands of my dollars because of an unspoken of oligopoly among ISPs that has grown out of the tacit agreement to not enter in to each others fiefs.