Back in University (2010-2013), I lived in a dorm on campus that had internet through the university’s network.

It was extremely cheap and fast (100/100 at equivalent to 3 USD per month), but Internet access was metered with a max of 50 GB / month.

However, access to University resources was not metered, and every student had ssh access to the datacenter.

That -D was a godsend.