“The barrier”

“The more time people spend on such games as “FarmVille,” the harder it is for them to switch to a different diversion, said Atul Bagga, an analyst at ThinkEquity. If you are playing games you like and you have invested dollars in it, you start becoming more attached to your avatar, more attached to your place,” Bagga says. “The barrier for those guys defecting from “FarmVille” is much higher.”

Da Business Week