Here's my breakdown of the catagories....
Money - The purpose of living is to aquire physical wealth.
Power - The purpose of living is to wield control over others, not necessiarily as "Hitler" as it sounds... trying to become the US President might fit in here.
Respect - The purpose of live is to earn the admiration of others.
Knowledge - The purpose of life is to learn all that you can learn before death.
Love - The purpose of life is to be in true love.
Fun - The purpose of life is to enjoy yourself.
Achievement - The purpose of life is to do things that no-one else has ever done.
Pain - The purpose of life is simply to suffer before you die. Quakers, sign up here.
Nothing - There is no purpose for living. (For the nihilists... "nice Marmot!")
Family - The purpose of life is to procreate, and raise a family.
42 - The meaning of Life, The Universe and Everything.
Other... - You tell me, I don't pretend to have *all* the reasons for living wrapped up into nice little catagories.
I voted for Knowledge. I figure, since our reason for existing isn't obvious, the reason we exist must be to try and understand why we exist. I don't figure we'll ever truly understand the nature of the universe, but the journey towards trying to figure it out is what "it's" all about. I know, it's very Tao, isn't it....
So that, and it's fun to drive fast.