Most business do not derive revenue from IT, therefore in an effort to cut cost many businesses are trying to find ways to decrease their IT budgets. This even holds true for information technology businesses. Why allocate a server, Internet bandwidth, and a intellectual resource just to host a Microsoft Exchange Server for only 15 people? You can outsource this headache for just .00 a mailbox and never have to worry if some script kiddy is going try to take it down.
The same idea same holds true for FTP access. Why allocate a server, and tie up your Internet bandwidth to have a product that is not nearly as flexible as Smartfile. For just .95 a month you have a safe and secure off site back up and file access system that anyone can administer.