“that only sells different types of nuts,””A sign of decadence and spare wealth that the area has.”
You know that in Geula there are a number of stores that sell only nuts and the like.
On the corner s of Manhattan there are street vendors selling nuts.
Are those considered the height of decadence?
It seems that it is just a section in the store, perhaps offering an opportunity for some young man to have some sort of job.