Iggy, my mob does not charge for alcoholic beverages in any of the classes, and I believe the same holds true for the other European majors. (Anyboby deny or confirm?) So there is no source of revenue there.
But as far as I know they
do have a substantial amount of shares in the Tax Free shops of our home airport.
Hug, management in it's boundless wisdom has decided
not to buy the device you're referring to. Or so I was informed by the head of the same department that couldn't spare me a bloke to check on the level of drunkenness of my pax last week.
Still waiting for an answer from our union on how much they were involved in the testing of it, and what their thoughts on the matter were.