People complaining about the lack of storage space for music and photos need to learn to use the cloud
1) The "could" does not leave my files completely under my control.
2) The "cloud" does not guarantee privacy/security.
3) The "cloud" is not available anywhere except within an accessible WiFi area, which is less than 25% of my time.
4) The "cloud" is slow compared to local storage (which can matter greatly with some things, like photo browsing).
5) If you are on a measured plan of any sort, the data use will count against it.
6) Using network/WiFi for data on portable devices uses considerably more power/battery than local storage.
7) Local media consumption cannot be interrupted by hiccups in network stability or bandwidth.
Certainly there is a valuable place for "cloud" storage, your example of having some local and mostly remote storage is reasonable. But it is not suitable for many people for all uses and in many cases is no substitute for local storage. Storage is *cheap* now, it is crazy to not have plenty of it on devices.