@Maciejasjmj said:
I don't get this thing. I mean, isn't the point of *box services to put your data in the actual cloud (i.e. some remote, well maintained server infrastructure), so that if your PC blows up, you still have access to them? Honestly, I haven't even realized I could share data with Dropbox until fairly recently, all that I've used it for was to keep my assignments and stuff and eventually download them somewhere else without having to have my PC on.
There is no particular reason why that "cloud" should be organized by an external company, rather than your own. In a semi-professional environment, having your data local means much quicker access (because everything only needs to pass through the internal network) and less chance of an overseas government organization patriot-acting its way into your data. At the same time, you save some of the hassle normally associated with network shares (e.g., having to go through a VPN to access it remotely), plus your data is also available on your phone, tablet, etc., not all of which support the more tricky networking setups.
For a private user, it means that if you have some NAS at home (for example, connected to your media-center) you can very easily back-up your data without actually having to upload / download anything and again, local access is much faster. Plus of course the fact that you do not have to pay for it, there's no file size limits, and you can sync terabytes of data if you are so inclined. Of course, if you only have one PC, there is not much point, but with media-centers, tablets, laptops and smartphones, that should not be the case for the vast majority of people.