Bang on.
Given a choice i'd like to piss about working in a record shop but I don't want to have to live paycheque to paycheque for the rest of my life. That is why I push myself and work long hours if needed. What I am doing enables me to lead a comfortable life with no money worries. Plus a job that challenges me keeps my mind sharp. I don't work weekends, save for the occasional hour or two in very rare circumstances. Hopefully it will enable me to retire early as well. The thought of working until 60 doesn't appeal to me!