There's another layer to this that I haven't seen in any of the comments thus far, and that is the fact that the movie studios are putting the GOOD movies behind the "second paywall." Many popular titles are not available for streaming, and require a "purchase" or "rental," outside of the titles you're getting with your particular services. I have Netflix, Hulu, Prime, HBO, and Disney, and it seems like, about half the time I get a hankering to watch something in particular (instead of just "grazing"), I see that it's not available on any of my services, and it's a rent/buy title. So, yes, I have bought some movies (less than a dozen), and I always buy them from Apple, if I'm having to buy. I've been tempted several times to "buy" the complete set of the Office on Apple TV for $99, but I fear exactly what the OP is talking about: a rug-pull that causes me to lose access to the library.