Actually, thinking about it. If she added one very special ingredient, one that none of the other wives could add, the best ingredient of all the wives, then I think this would make up for it. Provided she could use that ingredient with every meal.
But if more people are eating her food than others on the street, then it should be better. And the fact more people are going to eat it next year means you need a new wife. Especially if those picky Europeans want a taste too... [/sarcasm]