In my twenty years of experience
as a lawyer who does estate planning
as part of his
practice and teaches lawyers,
financial planners and paralegals about the topic, I find that the increased litigation costs associated with a do it yourself will (on average) is about ten times
as large
as the savings associated with doing it yourself.
In general the method of both case studies was to focus on
practicing lawyers
as authors, not journalists,
financial planners, or law professors.