Rationalism Costs. Finally, it has been alleged that the effort to “gin up” large - scale comprehensive planning programs ends up spending more that the plans ultimately save their investors or the new costs of data manipulation have been met largely by reducing the support of the activities which are measured.”43 Planning in the comprehensive, rationalist mode, in short, costs more that it saves. (Or so say its critics; practicing public administrators, as we see later in the chapter would appear to disagree with this criticism.)