I can't speak to South Korea's ISP market, but in the US the major cable providers are now doing very well. Comcast is at $18b in operating profit, with roughl

I can't speak to South Korea's ISP market, but in the US the major cable providers are now doing very well. Comcast is at $18b in operating profit, with roughly 18% operating income margins. Charter Communications is at $9.6b in operating income, with 19% operating income margins. Those are the two biggest cable companies in the US. In the early decades of cable, profitability was notoriously flaky for the industry. Enormous amounts of required capital investment, and it took a long time to saturate - scale into - the US market. Now the market is settled and they're printing consistently giant profits. Interestingly Charter has become a giant, worth $133 billion, and Paul Allen used to own a controlling interest in the early incarnation of it. It was part of his so called wired world collection of investments. https://www.seattletimes.com/business/economy/paul-allen-charter-and-what-might-have-been-jon-talton/ https://www.seattletimes.com/business/economy/paul-allen-cha...