Why not? My biz is successful due to my work, as opposed to someone else biz is successful due to my work. I control the work environment I exist in, I choose my own hours and dress the way I wish. I think that everyone that is answering NO to this question is suffering from the “grass is greener on the other side” syndrome: they know all the problems they encounter in the Pizza biz, and think that a job in another sector would be better - but that’s just because they are not aware of the problems that exist in that other sector. Work is work, if you are happy with what you do, and are making a good living, then there is nothing else to consider.