FJ-Warez said:
¿Is a survey a reliable source? |
A translation of part of the second link:
...This is less than the Playstation 2, higher than 5.5 million units sold (about 500000 PS3). For its part, Microsoft claims to have sold a total of 500000 Xbox 360 since its release in late 2005. As for the installed base of first-generation Xbox, it is 750000 consoles, according to Microsoft France.
Well for the Xbox data the source is microsotf himself. The ps3 they dont say.
¿Is a survey a reliable source?
As reliable as projections from collected data from 2% retailers, or what ever is with Europe. Thats what VG Chartz makes.