About Pachter and his estimates for the Wii U:
November 2012:
450K prediction -> 425K reality
25K over-predicted (-5.55%)
December 2012:
675K prediction -> 463K reality
212K over-predicted (-31.41%)
January 2013:
125K prediction -> 57K reality
68K over-predicted (-54.40%)
February 2013:
80K prediction -> 66K reality
14K over-predicted (-17.50%)
March 2013:
55K prediction -> 68K reality
13K under-predicted (23.63%)
April 2013:
55K prediction -> 37K reality
18K over-predicted (-32.72%)
May 2013:
32K prediction -> 33K reality
1K under-predicted (3.13%)
June 2013:
38K prediction -> 42K reality
4K under-predicted (10.53%)
July 2013:
30K prediction -> 29K reality
1K over-predicted (-3.33%)
August 2013:
30K prediction -> 31K reality
1K under-predicted (3.33%)
September 2013:
55K prediction -> 95K reality
40K under-predicted (72.72%)
October 2013:
75K prediction -> 50K reality
25K over-predicted (-33.33%)
November 2013:
150K prediction - ? reality
The Gamecube´s worst November, before the Wii launched, was a year before, in 2005, when it sold 272K...at that point, the system was practically on its deathbed, with no significant releases.
It´s bad enough the Wii U has been performing worse than the GC, when one compares both systems´first year, but it´ll be astonishingly bad if the Wii U has actually sold worse than the GC in November 2005, considering it´s one of the busiest shopping seasons, Mario 3D World, etc..