One big upside of having access to video in your music collection is all the independently-uploaded songs and song versions that have not officially found their way to streaming.

If your tastes are more eclectic this can be a really big thing actually -- the music streaming services are largely similar in what they do and don't have, which leaves out a LOT of stuff, and finally things vanish off of streaming all the time. Individually-uploaded youtube music-in-a-video on the other hand is astonishingly durable.

Totally agree about the UI though, and they also suck on royalty payouts -- only Spotify is worse.