Well, that 3DS figure is ~ 2/3 of what DS sold, while the Wii-U figure is ~ 1/3 of what Wii sold.
So based on that alone, 3DS would be more of a success/less of a disappointment than Wii-U.
Profits will play a big part in determining success or failure too, but as Wii-U is already been sold at less of a profit/probably a minor loss compared to 3DS at launch, I don't think we'll have to worry about that too much.







