e.g. Say you're away from home, need something off the server, and it goes down. With this, you can call support and probably have it up and running again.
The managed vs. unmanaged question seems important but mostly orthogonal to locality and form factor. And, Dropbox has proven that the local/remote Hybrid is valuable (along with management). Although the form factor is novel, I don't think it's significant for those who only care about the benefits of a piece of technology.
Maybe the world needs more managed services for the individual/household? I posted a "Tell HN" a few months ago about my desire for a managed router, so I guess I've already made this claim:
couldn't find none so far.