It&#x27;s not a huge deal. But when I&#x27;m packing at the last minute, the last thing I have time to do is sort through my music library to load more stuff onto my phone.<p>Frankly, I kind of stopped maintaining my MP3 collection the better part of a decade ago. I <i>have</i> lots of stored music, sure, but it&#x27;s non-trivial to maintain a music library on top of everything else in life. I use Spotify because it&#x27;s convenient. But yes, they have offline mode if I remember to pre-download everything.