For me, it's because the cable company (DirecTV in my case) wants to charge me for each TV that I have hooked up. In my house, that's an extra $30. Plus their rental fee for a DVR. This brings the TV portion of my bill to $80/mo. They do have some online streaming capability, but it stinks. YT TV costs $35 no matter how many TVs I want the capability on, and the service works the same weather I'm on my Chromecast at home, or my tablet away, with the exception of my local broadcast stations. With that all said, i haven't decided if I'm going to keep YT TV at the end of my free month, or stick with Sling.