The Yellow pages had a similar story not too long ago...
I'll give you one data point. When I was in college, we had a Facebook group for every single class and they were extremely valuable. We also used Facebook events heavily for various on-campus events. This too was extremely valuable. Now that I'm out of college, I have less affinity with those products from Facebook but I gravitate towards different parts of the site now.
Either way, you can say that your life would not materially change for the better or worse if Facebook fell off the face of the internet tomorrow. That's a valid opinion to hold. But don't make the folly of generalizing a global product that is so incredibly pervasive in ways that we can't fully understand. I'm not saying that this reality is a good thing, nor am I saying it's a bad thing. However we can have better conversations about the effect Facebook has than "Facebook is useless", "Zuck is a spy", "I deleted my account, fuck FB", "All their metrics are fake", "Something something Myspace".
Those simply aren't interesting statements anymore. They just aren't. They're tired and have been repeated year after year for more than a decade.
In fact this is how I think of them and their business interests; they are nothing more than merchants of human attention (like Google). After all, the bulk of their revenues comes directly from ads.
VR may be toy-like tech for a lot of people today, but Zuckerberg is betting on it to be the next big frontier for computing similar to how they doubled-down on mobile with the emergence of touch screens heralded by the iPhone.