The play's unusual title comes from this scene. In passing, Levene mentions both Glengarry Highlands, the new, hot property from which the salesmen are selling lots, and Glen Ross Farms, a property that is now old and unimportant, but was hot back in 1965. Even though hotshot Roma gets to sell Glengarry, and no one wants to sell the passé Glen Ross, no real difference exists between the two developments. Mamet signals this lack of difference by giving the developments almost identical names. These names are all we have to go on; the salesmen in the play almost certainly have never been to the developments, and the people to whom they sell lots have never been there either. To the salesmen, the difference between Glengarry and Glen Ross means the difference between success and failure. Mamet suggests that for these men, success and failure rest in the meanings that get attached to meaningless words.