You're in a nightclub (they still have those, right?). She's got a figure to die for / he moves like a demi-god. You make a move. But you know where it will end up. And how long it will last...
You're in tech consulting. Or you run a digital agency. Everyone else in Shoreditch has a foosball table. So you buy a foosball table. Or you offer a breakfast bar with croissants and muesli.
You've now got "a culture" which will attract and retain great staff, right?
I'm fed up of seeing the posts on LinkedIn. "I'm COO of Scooby technologies. We give all our staff breakfast. There's organic soya low-glycemic high-fibre stevia-based muesli. And cookies. I love our culture."
In the Silicon-valley copycat rush, every "startup", as well as a few who've been round the block a few times, are trying to out-perk the Joneses. But the direction of causality is important. If the reason you get the foosball table is because everyone else has one, but your values include that "work time is work time", then you're only sending a message out that you're an unimaginative wannabe. Don't do it.
Your perks don't define your culture - rather, they should be defined by them and by your values.