Not the OP, but first thing that comes to mind as to why you'd need a lot of datacenters are CDNs like Cloudflare or Akamai. Stuff like that, you need lots of s

Not the OP, but first thing that comes to mind as to why you'd need a lot of datacenters are CDNs like Cloudflare or Akamai. Stuff like that, you need lots of servers, lots of storage, and low latency. You'd also need a good amount of configurations because things like video streaming would require different server settings than, say, protecting a site that's being DDOSed.