Originally Posted by drtdk
I think your estimates are in the ballpark, as long as you don't count liquor. Since you're using midcons as your benchmark, think back to last LGA-DFW dinner flight. Remember how the flight attendant was running drinks for the entire flight? Bankers and consultants put away a lot of booze. I'm guessing the catering cost of a liquor mini approaches $3.
I'm no expert, but $3 seems WAY too high for a 5cl bottle. At Costco, you can get 1.75 litres of Tanqueray for $26, which is less than $1 for that amount. When bought in bulk on a corporate contract, I can't imagine they're paying more than 50c.