Their big selling point was their return of profits to units. Never saw much publicity of the good they did. One tenet was no competition with the locals. Found the shop in Gan selling watches and electronics at UK prices. Pointed out hid local shops on Aden and Singapore were way cheaper. Having been challenged he cut the prices.
Years later, in Ascension, we bought soft drinks at the local down town BBC NAAFI with greater variety and lower cost than the RAF NAAFI a Travellers
Then, at Coningsby the NAAFI wagon became beyond economic repair and too costly to replace. Local woman bought a van, fitted it out, bought sausage rolls etc and sarnies and mad e a profit.
We all know what NAAFI stands for.