You can always come up with armchair reasons why something wont work.
The people who make things work ignore that stuff, dont buy $500,000 locations, and hire minimally.
Again, go check out NOLA- cheap location on the edge of hipness, but far enough away from the center that rents arent too high, minimal, home made interior, great artesanal beer direct from the brewers, very simple menu of delicious made to order fried chicken.
KISS.
Most nights, its hard to get a seat, I see rows of people sitting on the curb of the sidewalk, eating and drinking.
If the food is good, the beer is good, and the attitude is cool, you have to turn people away.
No, you couldnt open a place like Kansas without a connected argentine partner and maybe 2 million dollars.
But you can open a place, and make a go of it, if you are smart, and your main priority is the quality of the food and drink.
I could list a dozen recent small, under the radar restaurants, cafes, and pubs that are doing great- the thing they have in common is ignoring what "everybody knows" and doing good food because they want to.
http://www.nolabuenosaires.com/