3D World will be the lowest selling 3D console Mario

[Lucas-Rio]

mii-gamer said:

you are missing the point. Read the bold 

The point is that SS is a 50 hours adventure game and that Mario 3D world is a platformer.

You can judge 50% of how a platformer is going to be on the first trailer.

People knew Mario Galaxy would be awesome for the first trailer, they knew DKCR would be great as well. You can see that Mario 3D world will be average and can't be great.