Where I live there are no competitors for the one cable internet ISP (DSL is not available and satellite is n competitive). As such they have not need to worry about losing customers to _competitors_.
Based on this article, I suspect that ISPs like Comcast and Charter are not extending their backbone to handle growing internet traffic. It seems they are charging exorbitant fees to discourage increased usage instead (in this article, the subscriber canceled their Hulu account and lowered the resolution of video supplied by Netflix).