The difference between the two types in operating an open-loop pool system is the cost for using returnable packaging. Mambers of non-profit pool companies argue that they have a lower cost per used item, that they are empowered to improve the system over time. When arguing for a member-owned pool company, the indirect cost for human resource input must be taken into consideration. Members must be interested in taking an active part in the planning and execution of the operations, and must see the commercial advantages of having access to full visibility and transparency that a member-owned pool company provides.