fresh produce is shipped overnight anywhere nowadays. being near a farm no longer gets you fresher produce. and keep in mind, produce is grown in many, many places. heck, in chicago we got farmer's markets every few blocks.
miami is one little street that's walkable, and a run down city of trash. i never said it was better. la was the example i gave of a city that is not walkable, like sf is not walkable. so density is not sf's pro, which the comment i replied to claimed.
as far as discerning taste, i've lived in moscow, versailles, catalonia, and tokyo. i've had good food. sf wasn't it. it was regular food, presented in weird ways, just to be different. putting avocado on something or drinking sake cold doesn't make it good -it just makes it different.