Yes it's overpriced, but the logic of "paying per use would cost more than buying a package" doesn't hold up, because it's how most things work. If you rent a

Yes it's overpriced, but the logic of "paying per use would cost more than buying a package" doesn't hold up, because it's how most things work. If you rent a single DVD it will cost more per film than if you get an unlimited monthly plan. If you buy a single song on iTunes it will cost more per song than if you buy the album. If you rent a car for the weekend it will cost more per day than if you buy the car and use it all the time. The main cost is the infrastructure, hence why the more you buy, the cheaper it can go.