Disclosure: I run a startup that makes SaaS status boards.
While I agree that having access to _actionable_ metrics is what's really going to be the biggest tangible benefit of these sorts of systems, I've also found that there exists another class of data that, while not actionable, also provides some utility. These are often tagged with the 'vanity metrics' label and conventional wisdom deems them to be useless at best and distracting at worst but, I've found, they can sometimes be useful.
In other words, I may not be able to act (or know how to act) when they change but getting constant feedback from many aspects of my business helps me to notice subtle changes that may be interesting and that sometimes act as a harbinger for larger/more significant changes further down the line.
What these metrics are will entirely depend on your business what sort of person you are. For me, something like changes in my Twitter follower count (a classic vanity metric), when combined with a host of other signals can give me subtle cues about how the business is being perceived, what's causing that, is it a good change etc... none of it is immediately actionable but it all adds up; it's more data points leading a more rounded understanding of how my business works.
It's entirely possible I spend too much time dog-fooding my own product and most reasonable business owners don't have the time to explore these cues, but I do feel like it helps me to feel more connected to the day-to-day running of my own business.