Because Apple and Google Music suck? And non Apple fanboys would never go to Apple music, Apple customers are probably already there, and people don't want to give all their business to the big giants which do evil things? (Not that Spotify doesn't do evil things). Spotify also lets you catalog your own tracks from local drives... does Apple Music or Google Music let you do that?
>And non Apple fanboys would never go to Apple music,
I did. Apple Music still has one major selling point: They own iTunes so anything on iTunes is on AM. For spotify and other streaming services you still have to wait a couple hours to a few days for something to appear on the other streaming services
That being said I moved back to Spotify after a year because of how awful and buggy the UI in AM is. If Apple Music could improve the UI and fix the bugs that have been about for years they could really do well. But I have my doubts as to whether that will ever happen
