Desktops are a little too big to carry around. Instead, you can buy a laptop to carry around wherever you want. With a powerful system, you can serf the net or even play a game! If you don't have one, why don't you get it? Get a laptop now and see what you can do with it!
Some people use laptops for designing(ex. photographics). Some people use laptops for gaming. Once in your hand, you can do whatever you would like to do.