 What is at issue here is the best choice of a convention for applying mathematics to empirical description. Binmore is clearly right, and the majority of commentators have come to recognize that he is right, if we interpret the payoffs of games by reference to utility functions with unrestricted domains. This is the overwhelmingly standard practice in both economics and formal decision theory. For a number of years this issue was regarded as closed in the mainstream literature. However,  Sugden (2018)  argues in very recent work that there are reasons, quite independent of technical considerations about which conventions are most convenient for representing empirical interactions as games, for avoiding appeal to preferences over unrestricted domains in analyzing welfare (that is, in doing normative economics). On the basis of this argument, Sugden reverts to using game-theoretic models in which payoffs are restricted to objectively specifiable metrics, such as monetary returns. The substantive issues in welfare economics on which Sugden sheds now light are too interesting for a critic to reasonably refuse to engage with them out of mere stubbornness about adhering to convention in interpreting game representations. It is too soon to assess whether the advances in welfare analysis that Sugden seeks are sustainable under critical stress-testing. If they prove not to be, then his motivation for an alternative convention on payoff interpretation will dissolve. I think it more likely, however, that a period of intensive innovation in welfare economics lies just ahead of us, and that in the course of this economists and other analysts will grow comfortable with operating two different representational conventions depending on problem contexts. If that is indeed our future, then we can anticipate a further stage in which, because problem contexts tend not to remain conveniently isolated from one another, new formalism is demanded to allow both conventions to be operated in a single application without confusion. But these speculations run well ahead of the current state of theory.