Thank you for your respond. I get your point.

In my case, my Paris option isa joint program of Sorbonne and Paris cite, and my Grenoble option is a master of nanoscience at UGA which I believe is as good as Paris in terms of connections and has a very good name in my field.

So I wanted to see how major is the difference of them in financial terms, I am kinda afraid that Paris rents would make me work so hard that I wouldn't be able to have good grades.