Laptops are inherently more expensive than equivalent desktops. I think it's something to do with hardware miniaturisation? Seems logical. Smaller parts = harder to make?
So yes, portability is a very big factor in costs.
It is, not just that they have to completely redo the parts cooling because of the smaller parts, which adds to the price.
Anyway.. looking at the sky now, the night sky does seem dimmer... please reboot the galaxy D: