Going to be purchasing an Nvidia Shield in the next few weeks because this M8S Android box I've got is load of junk.

From what I can see, there are two options, hard drive capacity of 16Gb and 500Gb which is a considerable difference.

If the primary use will be for streaming, what are the non-obvious benefits for such a increase in internal storage? Surely 16Gb is sufficient if not going to be used for I don't know, presumably having the space to store games on there?