For many service providers, latency is a killer. Imagine trying to use Artificial/Virtual Reality (A/VR) and having your experience interrupted by jittery images with uneven sound synchronization. That wouldn’t exactly be “reality” would it? Or maybe you’re online gaming and you have a target in your sights, but before you can get a shot off bang, you’re dead from an unseen enemy with a little less lag than you. That latency isn’t going to gain too many fans of your service.
Latency is highly dependant on distance, about 5 microseconds per kilometer the traffic travels. From a service provider perspective, the packet core is very centralized in most networks today.
