Every company that gives perks like that is only because they want you to stay all hours of the day and night. Sure, that is great and all and the money is wonderful at those places, I'm sure. However, the only thing that many of us care about is actual free time.
It seems like the whole culture is pushing this "Work your life away because it is the American thing to do" agenda. "40 hours a week is for lazy gits who will get nowhere in the workplace." Hell, where I work, don't work less than 90 hours a week if you want to make it through your next performance review. Most people start with at least 7 "use it or lose it" personal days and god help you if you actually try to take one. I am lucky because, as a contractor, they actually think twice about making me stay late as it is costing them. Salaried, I would never want to work there as that kind of environment is toxic to one's health and soul. This kind of shit is what makes tech workers hate their jobs.
Work to live and not live to work, words to live by.