At least with music subs you generally get access to most music you would want? With the video ones, you often find certain films/series are only on one of say Disney, Prime, Netflix etc. Suddenly you're paying for Disney, Prime, Netflix, Spotify, Sky/Virgin, onlyfans, other stuff.
Subscription models are becoming rampant. I just saw in another thread that there are rumours about Unraid moving to a sub model where it's previously been a life time licence. I wonder if plex will do the same with their "lifetime" pass in time. Gaming is the same. Heavily pushes monthly sub plans for content on xbox/playstation.