Nearly every person who plays World of Warcraft will buy the expansions at sometime in their WoW career. They do this because you need the expansions to level higher and explore new content.
Depends on how many expansions you want to get and how long you want to play.
You just need to install the original World World of Warcraft. Then you can buy the expansions later, if need be.
There are currently 2 expansion packs available for the original World of Warcraft. Burning Crusade (First Expansion) and Wrath of the Lich King (Second Expansion). There will be a third expansion sometime in the latter part of 2010 called Cataclysm. So 2 expansions and a third on the way.
It is estimated that humanity has collectively spent over 6 million years playing World of Warcraft and its expansions since the game was released in 2004. This is based on data tracking the total hours played by millions of players worldwide.
There are roughly 9-10 million active subscriptions for World of Warcraft.
It is estimated that around 9500 people join World of Warcraft every day.
Assuming every single subscriber in World Of Warcraft plays which is ten million subscribers, then it is assumed that there are ten million people playing world of Warcraft.
Around 14 million people
too many...
Over 10 million people.
If you are talking about the number of actual computer disks, then there is one . If you are talking about the expansions included, the there is the original World of Warcraft and the Burning Crusade expansion (on the same disk).
Currently, as of August, 2012, there are 10.2 million active subscribers to World of Warcraft.