This paper presents an overview of Gavin Mooney's contributions to broadening the evaluative space in health economics. It outlines how Mooney's ideas have encouraged many, including ourselves, to expand the conventional QALYs/health gain approach and look more broadly at what it is that is of value from health services. We reflect on Mooney's contributions to debates around cost-effectiveness analysis, Quality Adjusted Life Years (QALYs) and cost-utility analysis as well as his contribution to the development and application of contingent valuation and discrete choice experiments in health economics. We conclude by suggesting important avenues for future research to take forward Mooney's work.