Depends what you compare it too. Compare it to going to the cinema to see a movie and its good deal.
Compare it to paying for a month of Netflix and I'd say it depends on how much stuff there is on Netflix you actually want to watch! For me a lot of stuff on Netflix is either boring, unwatchable or something I've seen before.
Now include that you would be helping a creator to make art and, in my opinion, you would be going the extra mile...