I also cancelled my streaming service after the NCAA Tournament. I would have kept if they offered Marquee Network, but they didn't. I see that FuboTV added Marquee Network, so maybe I will buy that later in summer.
I was excited about the prospect of streaming TV services 3-4 years ago because I viewed them as competition for cable and dish services. They were great in the beginning because they were reasonably priced at $30-$40/month. However, in a few years they have adopted the cable & dish models: consistently increasing prices (they are now $60-$70) and provide around 80 channels of which 70 I never watch.
With the advent of Netflix, Disney, Prime, YouTube, Vimeo and other streaming video providers I feel services like YouTubeTV, Hulu, Sling and Fubo will be gone within 5-10 years. Other than sporting events the idea of watching a TV program at a specific time is becoming antiquated. The On-Demand model is the future. I would much rather buy a platform like Netflix or Prime where I can then purchase add-on focused content providers like ESPN, National Geographic, HBO or Marquee Network. IMO that brings accountability to ESPN or HBO to cost effectively create their content.