It is well known that some Chinese people play game to earn money. In fact, World of Warcraft is not a good game for them to earn much money. Above all, Blizzard charges a certain amount of money from every player, so it already earns enough money to run the game. Therefore, Blizzard is not trying to earn much money by selling cash items. Although there are cash items, they are not necessary in the game and only heavy users are inclined to pay for those items, which are used to decorate their characters.
Still, there are Chinese people who try to earn money by selling game money to other players, or raise other players' characters upon request. There is a place called "farm" where Chinese people automatically run World of Warcraft and collect Gold (the name of game money in World of Warcraft). The exchange rate varies from time to time, but normally a player can buy 200 Gold with $1. If we suppose that a Chinese WoW player earns 2000 Gold per day, he will be able to earn $10 per day. Compared to average hourly wage is about $2 (Bureau of Labor Statistics, "Manufacturing in China"), Chinese people can earn enough amount of money by gold farming without any physical labor, especially if they play several different characters at the same time and collect Gold from them. It is even said that prisoners are forced to farm World of Warcraft Gold (Forbes, "Chinese Prisoners Forced to Farm World of Warcraft Gold").
Still, there are Chinese people who try to earn money by selling game money to other players, or raise other players' characters upon request. There is a place called "farm" where Chinese people automatically run World of Warcraft and collect Gold (the name of game money in World of Warcraft). The exchange rate varies from time to time, but normally a player can buy 200 Gold with $1. If we suppose that a Chinese WoW player earns 2000 Gold per day, he will be able to earn $10 per day. Compared to average hourly wage is about $2 (Bureau of Labor Statistics, "Manufacturing in China"), Chinese people can earn enough amount of money by gold farming without any physical labor, especially if they play several different characters at the same time and collect Gold from them. It is even said that prisoners are forced to farm World of Warcraft Gold (Forbes, "Chinese Prisoners Forced to Farm World of Warcraft Gold").