OP, one thing to consider is, if you have an "Unlimited" data plan on your cellphone, is look into tethering your phone to your PC. The speeds won't be great, and it'll get throttled once you go over the soft cap (it's "unlimited" but almost all carriers have a soft cap number after which they throttle your traffic), but it may be an overall good idea to boost your overall cap number if you have no other alternatives.
I fail to understand how data has any wear & tear factor on the Internet.
Yeah, if everyone's using it, you have to expand services, but volume of data should matter not once the hardware is in place. People pay for the quality of service (speed) they get. Volume of data makes little sense if the company is turning a profit by having the service in place.
maintaining a high QoS on a large network is a LOT of work and not cheap. Lines are constantly getting damaged in one way or another, something gets fried, a node goes down, a DNS server goes on the fritz, etc. You could go on all day about problems that occur all too frequently on a large network. the actual transmission of data doesn't do much, but maintaining the ability for the data to transmit is quite taxing.
That said, this is not the proper way to fund and prepare for expansion or upgrading existing infrastructure. It's a step backwards, not forwards.
Is this already going on in The United States?
Some places with certain ISPs do have bandwidth caps to varying degrees.