I've paid VaultPress $40/month since nearly the beginning. I'd surely like to pay less and have a hard time recommending them to most casual bloggers or multisites due to the expense. Been thinking of replacing them with BackupBuddy (one time $75 fee) for backups and Securi ($90/yr) to monitor site security. Jeremy's pedigree is rock solid and his latest venture sounds intriguing, but it's too new for my comfort level.