Soundwave on 11 May 2014
The OP's point is kind of a silly one because the bundle he's talking about is only sold at the Nintendo Store in NYC and is available in extremely limited quantities (it comes with a Blue Shell figurine). They probably only have a couple of hundred to sell total. So that selling out means nothing, that's not the normal Mario Kart 8 Wii U bundle.
And of course MK8 will cause a bump in Wii U sales, the bigger question is by how much, and perhaps more importantly for how long? If the system sinks back to sub-50k WW numbers by August, that's not great.
