VOI isn't a concrete metric that's going to impress non-marketing executives who only understand spreadsheets, but it's an invaluable concept that every experienced marketer should instinctively understand.
It also aligns with one of my favorite #Cluetrain quotes: "Some of these conversations ended in a sale, but don’t let that fool you. The sale was merely the exclamation mark at the end of the sentence."
https://sparktoro.com/blog/roi-vs-voi-smart-marketers-look-beyond-the-numbers/