Artificial light isn't used as much as Natural Light by amateur photographers as it requires more technical expertise and isn't as readily available. Daylight is easy to use as it needs no preparation, however it only illuminates everything outdoors during day time hours. Knowing how to work with the different types of Artificial Light extends the range of a person's photography as there is virtually no limit to the amount of lighting equipment that can be used.
I'm looking forward to learning how to use the different types of Artificial Light so that I can shoot not only during the day.