Alcohol is about the only thing I'd want to get from the Shoppette most likely to save on the cost versus buying off base but who knows, might not be any cheaper these days.
Really no saving on anything on base these days, I think we had that thread.
However, they do extend this courtesy to non-beneficiaries so they can grab something for quick for lunch.... hot-dog, sandwich, Gatorade, bag-o-chips or even OTC meds......versus these people having to drive all the way off base for something simple like a snack or a bottle of Tums or Aspirin