Well, you already have "ping pong tables", "snacks", "disrupting the world" and "open space floor plan" listed as perks quite often, so why not. It is a perk as opposed to no breathing air, so...
I would not read a job advert for a company with "ping pong tables" and think that's a company I would like to work for. I don't wake up in the morning to go play ping pong! No more ping pong please ! :)