Like them or loathe them, MMOs are big money. In 2009, the UK online game market was worth £195 million. In the US, players spent around $3.8 billion on MMOs, $1.8 billion of which was on monthly subscription fees. World of Warcraft is the world’s most subscribed MMORPG with around 11 million subscribers in 2011. Players pay a monthly subscription fee of around $15, though this varies according to country. Players might also purchase special in game items such as pets, as well as expansion packs. Although it is hard to obtain an official figure for how much money World of Warcraft brings in, an extremely rough estimate of 11 million x $15 would put subscriptions alone at $165 million a month. Of course, a game like World of Warcraft costs a huge sum to run, market and maintain, but it is still clear that MMOs offer substantial profit.