Aura7541 on 06 December 2014
I looked up the Wii's shipment numbers up to September 30, 2007 and December 31, 2007. For the former, the Wii shipped 13.17M. By the end of 2007, the Wii shipped 20.14M units.
Checking VGC's numbers, up to Sept. 29, 2007, the site claimed that the Wii sold 12.43M units. Up to Dec. 29, 2007, VGC claimed that the Wii sold 19.51M units.
While we don't how much the Wii actually sold at those times, it doesn't seem that VGC was that far off. Also, Nintendo warned consumers in 2007 that the console would be supply constrained throughout that year, so shipped almost equaled sold-to-consumers.
