O'Regan J made several significant non-binding observations: (1) On the role of litigation in social and economic rights: Litigation should hold government accountable through requiring detailed explanation of policies, fostering participative democracy between elections. Government must disclose what it has done to formulate policy: research, alternatives considered, and reasons for the selected option. This understanding accords with founding values of responsiveness, accountability and openness. (2) On costs in public interest litigation: The approach to costs in constitutional matters means that litigation launched in a serious attempt to further constitutional rights, even if unsuccessful, will not result in an adverse costs order. (3) On the subsidiarity principle: The Court raised but expressly did not decide the difficult question of whether the principle of constitutional subsidiarity requires litigants to challenge national minimum standards directly before challenging municipal policies based on those standards. This was left open "for another day." (4) On the role of non-governmental organisations: South Africa is fortunate to have organisations with expertise in litigating in the interests of the poor to the great benefit of society. Such litigation should be pursued despite its expense and complexity. (5) On equality and redressing apartheid spatial planning: Courts need to be cautious when approaching differential treatment of historically disadvantaged areas not to find legitimate government action to constitute unfair discrimination. Different treatment might often be necessary or desirable given deep inequality resulting from apartheid policies. (6) On the quality of government policy-making in this case: The City approached challenges with "impressive seriousness of purpose and commitment to improving the lives of residents in a sustainable fashion." The litigation revealed that continual revision of policy during litigation was beneficial, not problematic, as it showed progressive realisation in action. (7) On new evidence on appeal: In social and economic rights cases, evidence of policy development after the challenged decision may be admitted to show ongoing compliance with progressive realisation obligations and may assist in determining appropriate relief, though it cannot be used to assess the original decision's lawfulness on ordinary appellate principles.