Every year, when my one year price agreement is up, Comcast jacks up my price by some ungodly amount. So every year I have to call them and express outrage at the magnitude of the increase, at which point they move the price point back down. This year I mentioned in passing a new competitor in town, so they moved it down to the lowest it's been in years. Basically, Comcast will charge you out the wazoo if you let them, but seem willing to lower the price if you whine.
FWIW, I have phone/internet/cable.