Don't put all your eggs in one basket. This pretty much sums up why I will continue to use, and pay, for my Dropbox service for documents. I do not see how integration with Google's other services is a useful thing. They are just files. Now my photos and music, well Google already does that.

The good news is that Dropbox should integrate search soon. They will have to in order to keep up. Competition is a good thing for consumers.