After the birth of their child, the Fitzgeralds moved to Great Neck, New York , on Long Island , in October 1922. The town was used as the scene of The Great Gatsby .  Fitzgerald's neighbors in Great Neck included such prominent and newly wealthy New Yorkers as writer Ring Lardner , actor Lew Fields , and comedian Ed Wynn .  These figures were all considered to be " new money ", unlike those who came from Manhasset Neck or Cow Neck Peninsula , places which were home to many of New York's wealthiest established families, and which sat across the bay from Great Neck. This real-life juxtaposition gave Fitzgerald his idea for "West Egg" and "East Egg". In this novel, Great Neck (King's Point) became the "new money" peninsula of West Egg and Port Washington (Sands Point) the old-money East Egg.  Several mansions in the area served as inspiration for Gatsby's home, such as Oheka Castle  and Beacon Towers , since demolished. 
Like Nick in The Great Gatsby, Fitzgerald found this new lifestyle seductive and exciting, and, like Gatsby, he had always idolized the very rich. Now he found himself in an era in which unrestrained materialism set the tone of society, particularly in the large cities of the East. Even so, like Nick, Fitzgerald saw through the glitter of the Jazz Age to the moral emptiness and hypocrisy beneath, and part of him longed for this absent moral center. In many ways, The Great Gatsby represents Fitzgerald’s attempt to confront his conflicting feelings about the Jazz Age. Like Gatsby, Fitzgerald was driven by his love for a woman who symbolized everything he wanted, even as she led him toward everything he despised.
Scott Fitzgerald was , in his own words, “a moralist at heart.” He wanted to “preach at people,” and what he preached about most was the degeneracy of the wealthy. His concern, however, did not lie with the antisocial behaviors to which the rich are prone: acquiring their wealth through immoral means, say (Gatsby manipulates the American financial system and dies a martyr), or ignoring all plights from which they have the means to protect themselves. Like many American moralists, Fitzgerald was more offended by pleasure than by vice, and he had a tendency to confound them. In The Great Gatsby, polo and golf are more morally suspect than murder. Fitzgerald despised the rich not for their iniquity per se but for the glamour of it—for, in H. L. Mencken’s words, “their glittering swinishness.”