Others have mentioned that they have some devices which only support FTP so SFTP isn't an option. I do this all the time when transferring DVD rips from one machine to another. For instance, transferring large files over your own LAN. However, there are some cases when using FTP is perfectly fine. No one should be using FTP over the Internet. Generally speaking, that's not a bad move, because most times SFTP is available anywhere FTP is, and SFTP is far superior in terms of security. Apple decided to remove the GUI for enabling and disabling FTP from Mac OS X Lion.
