The internet started out in America as pay per bandwidth. The current trend is more bandwidth lower prices in America. That's a trend the ISP's will continue to push. There is no monopoly on internet in America like there is in Canada. This could change with coming regulations but America will likely collapse before we see pay per bandwidth. There are plans amongst most ISP's to provide 100 megabits per second to metro areas and 50 megabits per second to rural areas. One reason America can do this is all the telecom companies get huge subsidies from the federal government. The feds even have a program that brings cheap high speed internet access to the extremely rural areas through backbone lines leased through the bell carriers.

Canada has always had a less than efficient version of the internet. Their ISP's are union run and very strict about policies. A very small part of Canada uses the majority of the internet.