Depends how much time the physical delivery takes. From my experience Monoprix picks high-rise locations (not like WallMart). Most of its customers should be at walking distance.
I don't want to speculate but it would help if a french gentleman tells us his experience.
You're right, every city I used to live in France, I had at least 1 Monoprix within a short walk distance. Where I currently live, I can get to 3 different Monoprix in less than 10 minutes by walk.
Never seen a Monoprix outside of a city anyway:)
I don't want to speculate but it would help if a french gentleman tells us his experience.