You are right that DoorDash might be closer to Kosmo (and may also go under). I meant that Amazon Prime showed that a scaled up, same day delivery service could be viable and profitable
I wouldn't call Amazon Prime same day. Amazon had prime now for awhile in response to Google's Express program; these were both same-day services that delivered in 2-4 hours from order placement. Both programs were cancelled when it became clear they were unsustainable.
