I own an ISP (WISP) that is virtually the only option outside of the two large incumbent carriers, Centrylink and Comast that residential users have. The other CLECs mainly, if not exclusively, sell commercial service. We have seen in the last 5 years demand for bandwidth increase nearly 500% mostly due to video streaming. The cost of the fiber and equipment has come down to be sure, but no where near 500%. So far we have been able to keep providing an essentially unlimited service. However if current trends continue, I'm not sure for how much longer.