Both COMCAST and Satellite TV have good deals at first but then after about 6 months they jack their prices way up. Anything that gives folks an option to get cheap TV is a plus and maybe COMCAST will be forced to lower their prices.
That is true for Comcast and DirectTV, but I haven't experienced that with Dish Network.
That said, I have a Roku, am converting my DVD/Bluray collection to mp4, running a Plex server, and subscribe to Netflix.
I'm getting close to 'cutting the cord'.