Music services are almost a necessity to me because of the amount of music I listen to, but it's also a different animal. They all have mostly the same library, so you won't typically be subscribing to more than one.

The problem with streaming video services is that most people watch a couple genres, and there's content in every genre on every streaming platform. I watch a lot of scifi, for example. So I would need to subscribe to Apple TV for Silo and Foundation, Paramount+ for Star Trek, etc...