I actually liked this name when I came across it. "Phrase" domains as I like to call them are very hit and miss when it comes to selling. I like this one because of the potential play with "backup" and online media. Its fun, and I could see a a company in this business willing to pay a few hundred dollars for this.
$250-400
If some kind of National Media campaign opted to use the term "Send Backup" then you've got a substantially better chance at seeing $2k-6k - but thats a long shot hope.
Justin