That's because it isn't ready for production yet, and certainly not at scale. You're in for a world of hurt if you try to deploy hundreds of containers at once from a central registry. And there's not yet a way to bind containers to physical interfaces that DHCP themselves at runtime.
Docker solves problems for developers, and soon it might solve problems in production. But for large deployments, that day is not today.
Docker solves problems for developers, and soon it might solve problems in production. But for large deployments, that day is not today.