Fortunately I have the status to always fly my default airline with extra legroom seats.

But to your broader point. Modern lie-flat business class is far more comfortable with personalized entertainment options (and plugged in via WiFi if you want) than first class on PanAm ever was. Long flights are still kinda boring but I'm not sure they're painful enough that any but a vanishingly small sliver of people who aren't already flying in private jets would pay a huge premium for them.