Who cares? Some do.
But my question is more global: Even "elitist" shoppers (Whole Foods, Trader Joe's, Costco Food etc etc) buy gas, need that "quart of milk" and could utilize the mini-mart. So where is the "high-end" mini-mart?
Obviously it would be in and adjacent to high(er)-end neighborhoods, of which there are plenty. So why don't they exist? Selling better products in a more comfortable environment? GREAT take-out food, nice landscaping & lighting etc. Ya know, Vivaldi playing in the background. Why not? Seems like an open market-niche. And the marginal cost of the more comfortable retail environment is trivial. Everyone knows you pay for the convenience of a "convenience store." So why not make the environment more attractive?