Comment by simtel20

Everything about a cdn is cost per MB, and Netflix has that priced at I don't know, I imagine almost zero, and maybe negative because they host with ISPs, which other cdns can't do. Which means their competitors must spend infinitely more money until they hit a scale where they can start to follow in Netflix's parh. Also, I imagine that buying hardware now, especially DRAM is four or more times as expensive as it was when Netflix paid for a lot of their hardware, so yeah, that.