Earlier quoted context omitted.
What if Comcast's network is built around the idea that traffic is exchanged relatively equally? They put in gigabit switches everywhere, a nice fair balanced network. Then Netflix comes along, and suddenly 35% of Comcast's customer traffic is all going to a handful of Netflix DSNs? Suddenly Comcast has to redo the whole connection. They have to buy top-shelf hardware just for Netflix. I don't know if this has happen…
Note: It is definitely not built under that premise, hence why your consumer bandwidth is asymmetrical... The Tier 1 always wants to ask for more bits than a lower tier operator. If a lower tier operator asks for more bits and tilts the traffic balance, things get interesting. Cogent is not a tier 1 but slings 35% of the internet around at will. It does cost a lot of money to route Netflix's bits and the narrative is…
I think a lot of us would have more sympathy with the ISPs' situation if they hadn't consistently and for a very long time been promoting their services as ever more valuable by offering ever higher bandwidth, yet keeping quiet about little things like massive over-subscription and high contention ratios that meant if all their users actually tried to use the service that was purportedly being offered then no-one would get anywhere near the advertised speeds they were paying for.
With the rise of things like streaming video services and Internet telephony, some people are actually trying to pull significant volumes of data down the pipes relative to the advertised size of pipe available. Everyone's known this was coming for a long time, and no-one more so than the ISPs. The way I see it, if the current situation hurts ISPs that failed to invest or set a realistic pricing model, they'll just have to take their medicine and offer a more realistic deal to customers next time (or fail because they can't compete effectively).