How closer are we from a Video game Crash?

[Ail]

vic_viper said:
Not everyone that plays MMORPGs in the world pays $10-$15 a month, many people in China and Korea (where the bulk of the WoW audience is) play at netcafes at an hourly rate.

 

Average revenue per each of the 11.5 million wow users is 10$, that's the number Blizzard last gave.

So that must be taken into account ( seeing how the cost is actually 15$ in the western world).