I get what you are saying, but the current plus package is "cheaper" than buying a la carte and they are making money from it, how is this different?
They are telling you with plus that they value a alcoholic drink at $2, and yet are making money on that. I doubt many people are buying alcohol a la carte, they would certainly spend more than the package cost. I'm just saying they could offer a package that includes non alcoholic drinks to guests that don't drink. There used to be a coffee package
Of course, part of the package goal is also to collect the tips and sell wifi which they might not have some buy or pay for separately.