$BCCI Baristas Coffee Co Concept is Being Copied By StarBucks ,What it shows is that the concept of drive though only is more profitable due to liwer cost and a focus on the profit center not just the average ticket price. You will find that this was the model they adopted in Europe. articles exist on this. This is also what Jack in the box and others are doing as well. Elininating the insise dining option. They just tore down a jaxk in the box in kent wa and built one that is drive though snd walk up only. The math is a better model due to much lower cost requiirements.

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