Usually, home users would by a fiber/dsl connection which includes an unlimited amount of domestic bandwidth and a set amount of "international bandwidth", typi

Usually, home users would by a fiber/dsl connection which includes an unlimited amount of domestic bandwidth and a set amount of "international bandwidth", typically from 10GB to 2000GB. When exceeding this quota, users would typically be billed somewhere around $15 for each 10GB increment they went over the quota. The size (measured in GB) of the international bandwidth "addon" determined the price of the connection far more than the speed of it. By hosting my servers in Iceland, the traffic through the VPN would not count towards the "international bandwidth" of my users. And since I was hosting in datacenters, I would be paying less for the bandwidth than at a typical home connection.