I read a bunch of comments in this branch, and I think yours nails it. Initially, I saw 60 USD per day and laughed. Thought to myself: "Ok, they will all be overweight in 1 yr -- like junior bankers!" Then, I realised the labour costs are pretty high, so 60 USD per day might be too low. It might be closer to 100 USD in "value" per day for Google to provide all your meals.