Laptop compare to Desktop

It varies between different categories, but lets give it a try to compare whats good between a laptop compare to a desktop.
Laptops are widely use because of its mobility and lightness while desktops are mostly for home or office usage which doesn't need that much traveling.

Laptops:
price varies between brand and functionality
many available designs
lightweight
upgrades are limited

Desktops:
price varies between brand and functionality
designs only depends on the casing, monitor and keyboard
immobile
can always upgrade parts