In my early days in the RAF at Machrihanish, the NAAFI was very popular. Probably because we were a few miles from anywhere and very few of us had cars in '72. Again on RAF Gan in '75, probably because we were a thousand miles or so from anywhere.
My last tour was at Wittering ending in 2001. Most airmen had cars so went off base, and the sticky bun bar (I've no idea why it was called that, as they never sold sticky buns!), had been replaced by a vending machine!
They still had a NAAFI wagon come round at Wyton in '94.