1. Convenience/Security: You don't have to deal with locking it up somewhere or carrying it into an office. You don't need to worry about it getting stolen. 2.

1. Convenience/Security: You don't have to deal with locking it up somewhere or carrying it into an office. You don't need to worry about it getting stolen. 2. Charging: You don't have to charge it/worry about it running out of power.