And I can't say, "Amen!," more loudly.
I have seen people be literally slack-jawed the first time they've seen a restore done after catastrophic failure and everything, absolutely everything, coming right back exactly as it was at the moment the backup had completed.
Given the amount of time and effort, even if it's in tiny dribs and drabs, that most put into tweaking things about Windows to their liking, and forgetting exactly what you've done and when, getting an "out of the box" version of Windows is just disconcerting. That's even if you get all of your programs reinstalled and user data restored. It is nowhere near as convenient (or satisfying) as having "the Windows World I Know and Love" just magically (or seemingly so) reappear.
If I have to choose either or between full system image and user data backups, it's the former without question. And if a machine has multiple users that becomes even more so. I don't want to be doing multiple individual user data backups (and, yes, I know there are ways to avoid doing them individually, but those are still less convenient than imaging the system as a whole in one step).