People like that stuff because it is like a part time job getting that stuff vetted and set up yourself. Time is money, many don't have time to vet all these health/dental/vision/etc packages on the public market place. Free pizza means you don't have to plan and prep a lunch. Childcare discount might even involve a known good childcare service in the area. Lounge access is great if you like to eat while travelling (and don't want to be saddled with a $15 airport double whopper or that $10 sad looking cesar wrap) or are a booze hound; the whole point of it is that its an infinite buffett of food and booze like a Vegas casino. People get smashed in lounges.