There's also the technical analog of this, too. Which services work well on my smart TV, my Chromecast, my Roku, my Amazon Firestick, my XBox 360, my PS3, my Android tablets, or my Windows machine is a total crapshoot. Even before we consider the yipping chihuahuas like Google and Amazon refusing to play with each other or questions of effective DRM or region locking, making something work on all those platforms is really hard.
(If only they could have seen this coming... https://news.ycombinator.com/item?id=5639076#5639327 oh right. This is pretty obvious stuff.)