Compared to what? Here in the USA there are several places within walking distance from my home that have a Starbucks across the street from another Starbucks. One of them is an intersection where 3 of the 4 corners have a Starbucks. There's at least one building here with 2 Starbucks in it, in case taking the elevator is too much hassle. Japan doesn't sound all that much different in this respect.