It's definitely a bonus if the keyboard has lights because most of the keyboards with that feature also have the option to turned them off. When you're working/gaming late at night that feature might definitely come in handy.

I switched to a tablet quite recently. Sold my laptop, because why not? And with the additional keyboards you can buy - I can't feel a damn difference. Tablets FTW.

My keyboard has the function to turn on and off the lights and trust me...it has never disturbed me.