Am I missing something here?
There are a number of other services listed on that page, including "Longview Pro - the professional version of our system-level statistics collection and graphing service (currently in beta)."
I got all that from reading the page you linked.
"Up to 8 checks free from Rackspace Cloud Monitoring, for 24x7x365 monitoring of URL content, port, and ping" 
"File-level backups. No charge per-server.
File storage: $0.10/GB/month. Bandwidth: $0.18/GB/month." 
Their backups you noted aren't free or included in managed cloud (they're additional).