PlayStation 5: Why aren’t people upgrading?

It was the best of consoles, it was the worst of consoles. Sony’s PlayStation 5 is one of the most interesting consoles to ever exist. It’s got a fantastic controller, but barely anyone has really taken advantage of its strength. It’s incredibly powerful and capable of running the most mind-numbingly beautiful games. So why hasn’t it outsold the PlayStation 4 in its nearly four years of existence?