Netflix can also multi-home closer to their customers to reduce bandwidth costs. Comcast is stuck burying cable.
Some apartment complexes and even HOAs force all of the tenants/homeowners to pay for internet + TV.
When I stayed in an apartment part of the lease agreement was that you had to pay $100 for a cable + Internet package and then had to pay more for extra boxes, etc. the complex racked on the minimum payment as part of rent then you paid any overage to Comcast.
We had a 300MB cap and the only way we could get internet without a cap when they first started was to get a business account. But you still had to pay the mandated $100 for cable to the apartment complex and then had to pay extra for the business account. We moved shortly afterward.
One of the requirements when we were looking for a house was that Comcast was not the only option.
http://www.condoassociation.com/blog/is-cable-tv-contract-wi...
http://articles.orlandosentinel.com/2010-08-19/business/os-c...