[Guardian]

in an ideal world we'd use tablet's for everything along with wearable tech and thus free internet everywhere would solve this... but we're a capitalist society so... I agree with the above.

Once the whole planet is covered with the infrastructure, the primary costs would just be maintaining the system. Ideally, there would be a plethora of companies providing services to drive costs down to a minimal.

Think landline telephone service. Almost every home has a line, so the cost is just maintaining the infrastructure.