You can search for WOW Classic Gold on Google, and you can see which offers are the most popular through several website comparisons. Or directly through the introduction of a friend to make a purchase, because usually the friend introduced him to the one he has known, you can rest assured to buy. Because there are too many sellers on the Internet, you can't say that the cheapest is the best. Also depends on various factors such as the speed of delivery, the security of the transaction. If you just played, you don't know enough about each merchant. I recommend you to choose mmoah website now, because you can consult customer service before buying, the customer service here is very dedicated, people are online 24 hours a day, and can do it for Dangdang. To deal with it in time. This is my favorite place.