Downloading sql dumps and other content from the vps can take some time, and uses quite a lot of bandwidth if you have a big site. Do you have any plans for a backup solution? I'm thinking that you pay a little bit extra per month, and get X GB of backup space on a separate node (or even better in another physical location/dc)?
Side note: although we would love to see this as a native feature... at the moment (and will continue to use) JungleDisk. It's cheap, only backups parts of the files that have changed (saves major bandwidth), is configurable, and you can choose between 2 different offsite locations. HTH!