Was going to say the same and handy if a black out as the battery kicks in.
Also easier to keep secure, transport and tidy up if not much room.
Although laptops get very very hot in phill if not well vented.
Also repairs are normally a little more specialist while easier to go to local pc centre and repair if no one at home has the skill or inclination with a desktop.
Keyboards are the worse culprits from experience.