I can't speak for other providers, but Time Warner Cable is definitely doing whatever it can to bring in (and keep) subscribers, offering plenty of incentives--namely those Visa gift cards that range from $50 to $200 in value, dependent on services you purchase. Before I went back to DirecTV earlier this year, I got into one of those TWC promotions, I added TV service to my already-existing internet plan. With that, they re-structure my packages into a bundle where I was eligible for the reward card (and I did get one when I subscribed to the internet service).
However, in order to get the new reward card, I had to maintain service for 90 days--I didn't quite make that mark, and as a result, I went back to DirecTV. I mainly watch sports, some documentaries, an occassional reality show (like Bar Rescue on Spike or Kitchen Nightmares on BBC America and CMT), sitcom and drama reruns, and movies; the girlfriend watches a ton of the Bravo and VH1 reality shows, as well as plenty of movies, while her son loves Nickelodeon, and to lesser extent, Disney and Cartoon Network. All that said, I'm really considering just dumping cable/satellite altogher once my DirecTV contract expires in the near-future, and go the OTA route with maintaining my Netflix and Hulu subscriptions for my movies and primetime fix, and just find a roundabout way to watch my sports.
There was something a story I saw the other day where HBO is seriously considering offering its Go online serivce in a standalone subscription, instead of having the requirement of being a subscriber of a participating provider. Of course, I would love for that to happen (as I'm sure many of you would too), but we know that the TV providers will raise a lot of hell if does become reality, or at least make things difficult.