Setting it up - absolutely. Using it once it's in place - pretty close.

I don't expect them to set it up themselves. Just to hunt someone down and pay them a couple thousand to solve their ridiculously expensive problem.

I agree - FTP requires servers to be set up etc. In most corporate environments that can take a long time (for good reasons, you don't go changing perimeter firewalls without some kind of change control) - much easier for everyone to install Dropbox and start sharing stuff in minutes.