I'm just emphasizing the opportunity cost here. I bought a high-end Smartphone the last year and I have been thinking if I should renew it on a yearly basis with the latest model.

By switching to DO (expecting they offer a comparable service), my purchasing power gets bigger and allow me to become richer (renew smartphone or buy some other stuff).

I'm just trying to show how competition, technology and efficiency makes us richer.

He's saving roughly $720 yearly by switching to DO. Most high-end smartphones retail off-contract for roughly $600 (which you would pay if you have a grandfathered unlimited data plan on Verizon or AT&T).