Moving to most of the current cloud services requires basically ditching years of organizing and meta-data work. So for people like me it becomes just backup.
I've thought about cramming metadata in there, somehow - text files on the disk? Metadata in the file itself? - but nothing ever seemed right, and like hell will I let some other application move/copy my files over and maintain its own weird binary database that I'm likely to never be able to read again as soon as my license expires or if I switch operating systems.