cause it gives me something to work on on daily basis, something to live for (in career way), something that could lift me on the global world business level..

because:
It is lifestyle.
It is only about me.
Seeing charts just calm me down and make me feel good.
It is based on inside view, not outside.
Everything depends on me - teach me responsibility, self-discipline, etc.
I will do it even I make everage salary like employee.
I just love it...