For what I think is a good perspective on work-life balance for one self-employed leader, I suggest you read Tim Grey's post. His might be the case of having your cake and eating it too.
The post caught my attention because I spent today writing at Gull Lake Park overlooking a perfect summer's day shimmering lake in beautiful Gravenhurst. I was able to turn out a lot of work, soak in the gorgeous day and feel reinvigorated at the same time.
Some of us who are self-employed do get this type of little perk from time to time. As Tim points out, we often work the long hours to earn it.
Enjoy your summer.