The sheer amount of times I've clicked on a game and in the comments someone has provided a source to the correct numbers and this site has done nothing to fix them is staggering.
A couple quick examples, Tekken Tag 2 was said to have sold 1.3 million copies as of Jan 13 yet this site has it selling 1.1 million copies as of May 14. Naruto Storm 3 sold 1 million copies in US and Europe by May 13 yet Vgchartz has it selling 1.1 million copies worldwide as of May 14.
They're quick to fix hardware figures but game sales are left ignored even after sources are given and it should be a simple thing to change the numbers up so they're accurate.
Otherwise I just always question whether X game as really sold as much as they're saying. For a video game tracking site they don't really do a very good job.
When it comes to games sales, particularly older games sales, VGC does not claim complete accuracy. However in the vast majority of cases its the best you'll find (for free)!
In this instance however it appears you have misunderstood the difference between shipped and sold to consumers. Tekken Tag may well have sold 1.3 million copies to stores. This site tracks how many copies have been sold to consumers. 200k sitting on shelves around the entire globe does not sound unreasonable.
starcraft - Playing Games = FUN, Talking about Games = SERIOUS