Ruh-roh: Simon Carless of Gamasutra/Game Set Watch analyzes VGChartz...

[theRepublic]

shio said:

steven787 said:
Accuracy of 10 or even 20 percent error isn't a big deal when you are discussing Qualitative properties of sales. Of course publishers and retailers want more accurate data, but as far as using sales to predict future trends in gaming (what type of games sell, what console is "winning") broader estimate work just fine. I don't see what the problem is or why the established game websites are so against the idea of VGChartz.

a 10% error, let alone 20%,  is a mortal flaw in methodology. Any professional outlet that often possesses that terrible margin of error wouldn't last long in the business world.

The article didn't say much I didn't already know, and I agree completely with it.

 

To Brett Walton: Please give credit to your sources, that's the way it should be.

 

Read this post from naznatips:

"That said, all data trackers provide nothing but estimates. ALL. Famitsu and Media Create differ as much as 40% on a given week, and each one tracks more of the Japanese market than NPD tracks of the NA market. Pretending any sales data gives anything more than a basic idea of sales trends is laughable."

Famitsu and Media Create are profesional tracking services.  I guess they and the NPD are all mortally flawed by your standards.

This is not science, and it is not a labratory.  There are different standards in the real world.