The cost isn't just bandwidth, but also: - infrastructure (memory, CPU, disks...): all of which must deal with the huge amounts of data they manage (500+ hours

The cost isn't just bandwidth, but also: - infrastructure (memory, CPU, disks...): all of which must deal with the huge amounts of data they manage (500+ hours of video uploaded every minute). - personnel cost (developers, SREs...) (almost) all of whom have substantial salaries that support the gigantic scale (1 billion+ hours of content viewed every day)