Easy, 'cause once NX will be out, WiiU will go down and down in the weekly, and PS4 will have a user base of 58-59M by that time. This Gen is just PS4 domination; but who cares, we have to enjoy the game experience, and NX will be another option, so everybody is happy.
”Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion to reach for the stars to change the world.”
Harriet Tubman.