Why are people saying the 3DS is selling badly?

[zorg1000]

DialgaMarine said:
It's not doing terribly now, but it's not doing anywhere near as well as the NDS. I guess a console has to sell 100M + to be considered a success nowadays.

Ya idk why people act like a console has to do 100m+ to be successful. By that standard Gameboy, Playstation, Playstation 2, Nintendo DS and Wii are the only successful consoles in the history of gaming.