At close to 50% attach rate, Wii U is going to have to pick up the hardware sales to crack Double Dash's total any time soon. I expect once Wii U gets over 15 million it should have pretty much sold more than Double Dash. But at the rate Wii U is selling that's looking to be some time in 2016.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix







