According to this front page NYT article , apparently some towns are deciding that price is too high: RIVERSIDE, N.J., Sept. 25 — A little more than a year ago, the Township Committee in this faded factory town became the first municipality in New Jersey to enact legislation penalizing anyone who employed or rented to an illegal immigrant. Within months, hundreds, if not thousands, of recent immigrants from Brazil and other Latin American countries had fled. The noise, crowding and traffic that had accompanied their arrival over the past decade abated. The law had worked. Perhaps, some said, too well. With the departure of so many people, the local economy suffered. Hair salons, restaurants and corner shops that catered to the immigrants saw business plummet; several closed. Once-boarded-up storefronts downtown were boarded up again. There are a lot of academic studies on the impact of immigrants, legal and illegal, on a community. But nothing illustrates the impact of people as stark...