Delivery is only worth it if getting a DWI is on the table. Literally the only time I get DoorDash/GrubHub/etc is when I'm drunk and shouldn't drive. A DWI ticket and the expense that'll incur is well worth paying someone a delivery fee.
EDIT: I suppose I have to also mention that killing people by my drunk driving is also a good reason to use DoorDash. Just thought maybe that was obvious...