I definitely spend too much on cable/internet, about $120/mo.
My justification is that I have a renter in a garage apartment who uses the same service. He likes it a lot, and half the bill is incorporated into the rent so I'd only get a 50% benefit by downsizing my service.
A rationalization, yes, but I'm sticking with it.
It'd be interesting to try a no-TV week, though. I'd probably come up with all sorts of neat things to spend my evening hours on.