Comment by intrazoo

It seems logical that they would want your data, but: 50gb is pretty much free for them (storage gets cheaper over time, for one) and maybe a good selling point, no sd card makes file system easier and phones thinner, and in addition to wanting all your data, they would want to have android users have the nice automatic expedience of having all their music in one place on all devices, for example. Want your users to have great simple experience. You want this for business reasons, and I am not saying they are not also data hungry.