Britain eschewed EU membership in the late 1950s but changed its mind in the early 1960s, only to be rebuffed by Charles de Gaulle. Membership came only in the early 1970s. This column argues that, among others, Britain joined the EU as a way to avoid its economic decline. The UK’s per capita GDP relative to the EU founding members’ declined steadily from 1945 to 1972. However, it was relatively stable between 1973 and 2010. This suggests substantial benefits from EU membership especially considering that, by sponsoring an overpowered integration model, Britain joined too late, at a bad moment in time, and at an avoidably larger cost.