Oh come on, you're being silly. Brawl sold 12 million to an audience of 100 million people, Melee sold like 7 million to an audience of 22 million. That's more than 1/7 of the Wii audience, while Melee sold to more than 1/4 of the GameCube audience - and Brawl only sold 5 million more, despite the Wii selling approximately 4 1/2 more than the GameCube. Melee was a profoundly successful game.
I don't think that argument works. The reason why the Wii sold to an audience of 100 million was because it attracted people who don't buy things like Smash Bros. Meanwhile, the Gamecube was totally overshadowed by the PS2 and the Xbox, so the core Nintendo audience was a bigger part of it following. It's kind of in the Wii U situation.
Anyway, we're pretty far off topic. Those downloadable characters, right?