Shipped? Unless a company says "sold to consumers" or "in homes" or something similar then whenever they talk about sales they are talking about sold to retailers. And how exactly would Sony know the precise sold to consumers number of the Wii U after 55 (or even 52) weeks? The only truly accurate number they would have is Wii shipments in the same timeframe (unless they are secretly using VGC sales). Given supply constraints for Wii it is highly likely that PS4 shipments>Wii while Wii sales to consumers>PS4.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
