Yes, absolutely. Climbing is such an integral part of my life that to be without it practically equals death in itself. I can see Lowell's point when he says that an obsession with climbing indicates narrow-mindedness, but others would call that focus . It all depends on your perspective.
Ross also made a good point with his assertion that "People seem to put too much stock in the idea that a long life is somehow inherently good while a short life somehow is a life wasted... ". When you take a look at the lives of people we've lost in our immediate climbing community (Carl and Ben leap to mind), most would say that their lives ended early. But who would argue that they hadn't crammed an incredible amount of activity - that is to say, life - into what time they had on this earth?
For me, being in the mountains is where life actually happens. Nothing else can replace it. At 20, I've spent a quarter of my life climbing and cannot imagine what I would be doing otherwise. And maybe my priorities will someday change, and I'll want a family and a house with a white picket fence - but jesus, I hope not.