At least in the case of a music player, self-hosting simply isn't good enough for me. I'm not willing to accept a single second of added latency or buffering or downtime because I don't have multimillion dollar server farms. The fact is that the vast majority of us don't have the resources to self-host a Jellyfin instance that can provide near-instantaneous access anywhere in the world to every song ever made at 320kbps. And that's the bar for music. I can deal with a little added latency vs. Netflix on a Plex server or something. But I'm not willing to compromise with music.

This isn't even to mention the numerous features that Spotify has which are difficult or impossible to replicate on self-hosting. The "radio" feature, song recommendations, the DJ, AI playlists, stations, automatic playlist enhancement, social features, Canvas... the list goes on. And of course I never have to worry about managing a library of mp3 files. When an artist I like drops a new album, it'll be on Spotify at 12:00am exactly and work perfectly. This isn't possible with self-hosting.

When you look at it this way, the chance to pay 6 bucks a month to get all these extra features and ignore the headache of self-hosting is a no-brainer.