Yes, but that is different from going out of your way to purchase the protein bar at the lower price in the place you can find it. You are not going to drive to another supermarket for just the protein bar alone. So there is an intrinsic stickiness. You might hold off on the purchase if you're happening to visit the other store in the near future, but would you drive to a store you've never heard of before /just/ for a bar?
Yes, but that is different from going out of your way to purchase the protein bar at the lower price in the place you can find it. You are not going to drive to another supermarket for just the protein bar alone. So there is an intrinsic stickiness. You might hold off on the purchase if you're happening to visit the other store in the near future, but would you drive to a store you've never heard of before /just/ for a bar?