I did an RP one time where Gambit had bought about half of New Orleans and had turned it into "Mutant town" where only mutants and those friendly to them lived and worked. People used their powers for work, so there was always a demand for new people with powers and people in the area made far more money than average because they did more work. It was just a background location, though, meant as a safe haven against the MRD and anti-mutant groups.