[ghaff]

>Prime is (currently) a clearly inferior offering for music and video

Yes, but for a very casual streaming music listener like myself who also has a pretty big music library on iTunes, free (with Prime) + Echo makes paying for any other music streaming service just not worth it. I'll take my free streaming and buy a song or album every now and then with the savings.

Amazon is somewhat inferior to Netflix in streaming. I have both in this case. But there are Amazon exclusives as well plus again, for many people, what's available with Prime is good enough to not make it worth paying for Netflix.