Network will not continue to get cheaper. Not because of technology limitation, but because of good ol' capitalist monopoly power. Google and Apple don't think they own your stuff and rent to you, they do. The purpose of a system is what it does. We will eventually hit the point when network (via subscription, fees, TOS, and whatever else nonsense they can think of) will be so restrictive and cost-prohibitive that physical media will seem like a miracle cure.