Even if you have a high order volume, a delivery service should still have more deliveries near a given destination and be able to improve margins by grouping those together for delivery.
I may be the only person in my apartment complex ordering Chipotle for dinner tonight, but there are going to be several others ordering something.
That is a common assumption for people to make about delivery services, but it is not that correct with prepared food delivery, where it is unlikely that you will line up even two pickups without compromising the freshness/hotness of at least one of the orders; often this is difficult even if both of the pickups are from the same establishment.
Now, unlikely and difficult don't mean impossible but there's more to it than meets the eye.
I may be the only person in my apartment complex ordering Chipotle for dinner tonight, but there are going to be several others ordering something.