You can work all you want without waking up the people around you because you will be able to see your keyboard without turning on overhead lights.
When you can’t sleep, and you want to get some work done, having a backlit keyboard will help you. If you have ever traveled at night, you know how useful a backlit keyboard would be on your laptop.
Though not pertinent to the functionality of the laptop, it is definitely a nice feature to have, and here is why. Here are some of the benefits of having a backlit keyboard versus one that isn’t lit.