Getting a rolling release just right and then freezing it: a good idea?

I really like how rolling releases offer the latest versions of everything, because sometimes that is important. However, once I have things working well, I am not that anxious to keep updating to the latest. Is it a sensible strategy to "freeze" my installation of an rolling distro like Arch and then only manually update the kernel and base packages a few times a year? The install in question does nothing except host VMs for PCI passthrough, share storage to those VMs, and handle online backup. So I shouldn't be needing to add new upgrades unless I decide I need some feature in a new version. Ideally I could identify bugfix-only patches and only do those unless I had a specific reason to do otherwise. Is this a sensible strategy?