Cable is one of the few things that is a much worse deal in the US - because they never had to compete with decent broadcast TV.
Basic cable package usually costs $100/month (whatever they claim in the ad they will find some extra charges to make it $100/month). Then they still do the package layering, so if you want decent movies you have to buy the family package first and then the crap movie package and then the decent movie pack. They mostly survive on having sport tied up.
$7 for Netflix to watch a decent selection of shows with no ads whenever has cut the cable, adding HBO for another $10 is a definite