World of Warcraft will require a fee to play. This fee will be used to support the costs associated with the high-quality levels of service, support, and ongoing content creation that we are planning for World of Warcraft Gold.

Will there be multiple methods of payment besides just credit cards?
Yes, we plan to support a range of payment methods. In the initial launch regions of North America, Australia, and New Zealand, customers will be able to pay their subscription fees by major credit card, PayPal, and pre-paid game cards. Payment methods in other regions will be announced at a later date..