I salute your commitment to the audio jack. I no longer have that luxury, but it is what it is, and I love my phone despite that glaring flaw. Wish it had an FM receiver too, but oh well.

If nothing else it’s an entirely private and secure way to consume music.

Amen to that. I've got my weird guilty pleasures that I go to occasionally and there's no reason anyone else needs to know why I listen to a couple of specific dubstep songs as often as I do. If that theoretical information ever got leaked, would it even matter? Probably not, but I'm able to enjoy the music more if I can listen in my own world with no strings attached.