How many wii u were sold in the week of splatoon release in Japan?17.7k Wiiu Were sold,congrats to any who predicted 17k or 18k,there is no much space to write the winners in the title,they are many!

[Mummelmann]

I think Japan will be this game's best region by some measure (relative to the size of the market) and this also yield the biggest hardware boost.
18-20 I think, go with the middle figure and say 19k, probably the highest of all the consoles for that week.