Besides the dubious economics of it in places that aren't saturated with coffeeshops, I don't think I'd want delivery coffee. I always use a run to the coffeeshop (if I'm coming back to the office) as a way to clear my head and stretch my legs. Maybe for rainy days?
Yep, coffee has very little to do with actual "coffee" as a product.
Coffee is a ritual, and often, a social activity. You go somewhere sooth your mind on some coffee sipping, people watching, chatting with others, or just daydreaming, and then get on with your day.