Sometimes I think Europeans could be lucky guys.
In France, Mario kart's bundle sells at 279 € everywhere.
But some stores do more !
In my local store, if you bought any wii u bundle (wii u premium/basic with super mario bro/luigi, monster hunter, just dance or lego city), and mario kart separatly, they refund you mario kart directly.
I've just bought one, and i get for 279 €, Wii u Premium + 2 mario bro games, and mario kart 8 (and one more game to download with the mario kart code registration).
I think they want to purge stocks of older wii u bundle, and it's really good for us.