Problem is getting all users to agree on a real source for sales.
VGC data has its issues.
NPD and others are only regional and are not easily attained.
MSonyTendo don't update often and are shipped figures.
So, if we keep this local to VGC we can all agree on VGC, but then what about changes to the data? Do we make cutoffs etc?
Additionally, we always have periodic prediction leagues. Especially during holidays.