Earlier quoted context omitted.
Not sure if you're being facetious or just don't understand the reality of living in NYC... I can probably walk to a dozen different big grocery stores in 15m and they're ALL more expensive than the cheap fast food in the same area. Not including the smaller expensive bodegas where you can pick up stuff 24/7 every block (kinda like the equivalent of a gas station). A half gallon of milk is $4 at any of the big stores…
Shoot me a cross street, I'll go visit it and take some prices.
For comparison: I'm trying to beat the numerous dollar pizza and food carts nearby, not normal "fast food" like the more expensive Five Guys on that intersection.