Same goes for Prime Video. Almost nothing I like to watch, though some HBO shows are (were?) available as part of Prime for awhile, which was nice. Beyond that, I find their catalog to be quite lacking in comparison to HBO Now and Netflix.
The entire HBO back catalog is free on Prime. Prime has a somewhat limited selection but Amazon Instant Video in general is excellent. If you think of it as pay per view you'll be a lot happier. I for one do not mind shelling out a few bucks for a movie.
IMHO it's way more worth it to just get an HBO subscription; the quality there is much, much higher, and you can play it on many platforms. Certainly more than amazon video....
