Ah yes, the old "sync 600GB of MP3s onto a 32GB device" trick.
I'm sure, at amazon prices which is a fair approximation including CDs, you didn't spend $100,000 on them either.
This is really not a problem. Well it is but only greed created it.
Putting this down to greed? What an incredibly short sighted, ignorant thing to say. Perhaps we should have stopped at black & white feature phones because only greed could mean we wanted to access the whole internet on the move?
It isn't a "solved problem" because there are still issues with the solution.