Was Super Smash Bros a system seller for the Wii U like MK8 was?

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MK8 is the more appealing game to gamers in Europe and Japan. In NA, Smash is. Smash is already like what, 200k under MK8 for the amount of games sold in NA? Whereas Europe and Japan sales are way higher with MK8 than Smash. So for NA, it was a system seller. Sadly, because of the 3DS release, it hurt sales a bit. It could have been a lot more.