torah, you must not be from boro park. On one block alone on one side of the street there are 4 banks. from 45th to 47th there are i think 8 banks. I think there might be more than 18 in an 11 short block stretch. I don’t remember exactly and will have to count again but there are many many banks on 13th ave and that is not the only place in bp to have banks.
There are 8 banks on ave j between coney and east 16th and almost as many places to buy sushi. not sure that it proves anything other than this is where the retail space is for several avenues.