I got asked to do a survey when I opened the Spotify app last week. All the questions were of a "What would you do if this price rise happened?" and most of the varieties had the family plan going to £20.99. I don't know what they are smoking to think that they're worth more than a Netflix subscription. Video > audio. If they put the family plan price up I'll cancel it and use Prime Music or something.
I get what you mean, but I wouldn't accept that as a universal truth. I spend considerably more time listening to music on Spotify than I do watching video on Netflix. The content I consume on Netflix may have cost more to produce, but the content I consume on Spotify gives me subjectively more value.