Their forced insertion of ads into their streaming content was it for me. There are so many shows that do not say ad supported and available with Prime, yet as soon as I'm watching something that shows me an unexpected ad break, I stop it right there. I doubt there's anyone looking that the specific metric of how many shows stopped being viewed at the ad break, but I can't imagine I'm the only one.
I always suspected YouTube pays attention at ad breakes because every time they would dare starting a video with 40/50 seconds of unskippable ads (happens on the tv app only, they never dared on desktop/laptop) I just exit the video, reopen it (or another), and I'm served for a goos hour 15 to 25 second ad max.
And yes, I went for Premium which I find outrageously expensive.
