>>493574Some people enjoy mountaineering. It is a way to push yourself, to better yourself. It can give you something to train for, push your boundaries, and do things you may have thought you couldn't do. If someone told me I would be climbing mountains 3 years ago I would laugh at them. But for me I enjoy it, I try to be smart and not push myself too far.
I'm sure "extreme" mountaineering is just people who want to push themselves and their boundaries that much more. In any group / hobby / sport you will have the casuals, and the balls out, 120% effort all the time people.