Because Nintendo is the only console manufacturer who dares to try something new.
I like the Wiimote+Nunchuk controls for many games (like Shooter, Strategy, Adventure) and I like the gamepad (being skeptical at first, but now I don't want to miss it). Even the new Mario 3D World is better played with Wiimote+Nunchuk than with a standard controller (or gamepad controls).
If there was no Nintendo hardware I was stuck with a PS4 or Xbox One, that is PCs in a console box, but with worse controls than a PC. Kinect is nothing more than a gimmick (a criticism that some used misleadingly for Wiimote or Gamepad), and totally irrelevant for the type of games I play (Adventure, Shooter, RPG, Strategy etc.)
But I don't fear that Nintendo goes third party. At the end they will make the profit with the Wii U, even the gamecube was more profitable than the PS2.







