Not all laptops are like office machines
Funny to read these reactions "why would you want to overclock a laptop, buy a desktop instead.. ".
NVIDIA should have known gamers do not like to be locked up in walled gardens, they paid dearly for their freedom, specially for owning a laptop with a NVIDIA 970M/980M.
Modern gaming laptops like MSI GT72 series have double cooling fans, do 10000 on the 3D-mark with a NVIDIA 980M. They even announced a new GT80 with 2*980M in SLI mode that goes towards 20000 3D mark. The MXM packaged graphics card can be upgraded.
The economy of a gaming laptop is better then most think. When starting from zero gaming gear, they are perhaps 20% more expensive then initial purchase a desktop, counting in that on gaming rig everything has to be right, including a sub 5ms refresh monitor, good gaming mouse and keyboard. The better residual value of laptops after some years may even balance this 20% out.