It's not my business (do people still say that or have I just dragged up an expression from the 60s?), but why do you need all these music apps? I just rely on Google play (although I still manage to run out of storage with that)... I suppose it's a matter of history. Anyway.

Well, I don't know if you call music a vice. People who aren't... preoccupied with it to some extent are rather exceptions than the rule. And at least for me it's pretty cheap, as I rely on the Google Play subscription. I kind of feel guilty about that sometimes, because ultimately it comes down to what the artists get. But at the same time, if I had to buy that music at premium prices... well, I just wouldn't be able to.