I reached the same conclusion today. When I logged back in to disable the autoplay-previews, it occurred to me that the only reason I have a subscription still is to catch the remaining Sherlock (with Cumberbatch) episodes that I haven't yet seen.

But I realized they might also be found elsewhere, and it turns out they're carried by Amazon Prime Video. That was the last straw for my Netflix subscription.

I'm amazed by how thoroughly Netflix has changed me from a lover to a hater of their service and company in recent years. It's not just a matter of cancelling because they don't have a catalog I care about. It's that I feel lied to and manipulated as well.