I find that the customers who are paying $0.01/month often provide the most enthusiastic word-of-mouth advertising. You're not useless at all, no matter how little you have stored. ;-)
[I haven't looked up your account, so I don't know if you're over or under $0.01/month, but the precise number really doesn't matter.]
Weekly backups of my VPSs, daily backups of my email and Tiny Tiny RSS database. I'm probably worthless as a customer :|