I feel that Nintendo might get a boost of sales for Mario Kart, but definitely not for Smash Bros.
It was an absolute mistake to sell the 3DS one in summer and Wii U one in winter.
Who's going to want that one when you could've played the same game 6 months ago on the already extremely popular console that costs less?
Also, tis definitely NOT the time to buy, as the only game you know for sure is on the horizon is Smash for Winter.
When is Bayo coming out? Or X? They haven't released that info, and it could come out in 2015 for all we know.
Wait til after E3 to tell people to get a Wii U.