It'd be a spectacular view for sure, so I do quite enjoy the feeling of being at those tremendous heights when I know I'm not just a random strong gust and a few seconds away from splatting. It's the lack of any safety net if something does go funny; I wouldn't trust myself, let alone the stability and purchase of the rocks beneath my feet.
I think those people have the attitude of "if I fall, I fall", rather than arrogantly ruling out the possibility. Fair play to them I say.