Most people just subscribe to a music streaming service because... convenience. An analyst friend of mine argued that Napster succeeded because convenience rather than free. I disagreed at the time. I think I was mostly wrong.
The streaming service still doesn't have a convenience advantage. It has a discovery advantage. Listening to your own local music can never show you a song you weren't previously familiar with.
Mostly it does for me. I can put on some playlist that is generally satisfying enough. If I cared to put the effort into curating more playlists and spending the money on songs that I like that I'm missing I'd probably actually save money. I'm mostly not looking to discover hot new artists. Honestly, I wouldn't miss the lack of streaming much if it went away.
