I keep my feet on the ground unless the only alternative is to hit a rock; living in the East, my opportunities for soft powdery landings are somewhat limited. That said, I've spent the past season trying to improve my bump skiing. I'm nothing great, but when I'm skiing bumps well (even the rock hard ones) -- it doesn't hurt at all. To each their own.
I buy skis for the terrain I like to ski, and suffer with them through the few turns of bumps you have to do in a day. I'm sure if I bought some bump skis (or maybe just something a bit shorter/softer than most of my quiver) I could figure out how to ski bumps better, but I don't really care. To me, there just whats in the way on the way to fun.
To each their own.
Oh, and by the way, I've found that making cliffs easy/painless is less about how soft the landing is, and more about the angle of the landing relative to the air/takeoff. That, and you can't huck into moguls. It just hurts. However, I'm sure in the east long smooth landings and runouts are hard to come by.