Why do you have to pay every month for World of Warcraft?
It costs money each month for playing World of Warcraft because Blizzard Entertainment is a business. They want to make money off of their game.
It also costs money to keep the servers up, pay for tech support personnel, game masters, lawyers, even just electricity. All those cost money.
It World of Warcraft were to go to F2P (Free to Play), then they would have to make money by selling more than just vanity items in their store.
Blizzard has several options that you can choose to pay for your World of Warcraft subscription. They have month to month, 3 month, and 6 month recurring options. The month to month option is $14.99 per month, and will run you around $179.88 if you choose to pay each month. The 3-month option is $13.99 a month every three months, which is $41.97 every three months, which is $167.88 a year. The 6-month option is…
World of Warcraft can be installed on as many computers as you want. The problem is that you need a CD key and a account to play but you can use the same account on every computer you have it installed it on. I.e. you can have any number of computers but you have to pay for a serial number to create your account - each account is separate and costs $15/month to have.