If your paying all that money for a concierge level room, I think it would be insulting to the CM's and other Disney staff if guests did not fully enjoy all the snacks and beverages laid out before them, especially on your last day.
Nothing beats that long and somewhat sad drive to the airport better than some cookies, punch, gummie worms, p/b sandwiches, etc. scarfed up at the last minute as we are heading out. Of course we are making Disney happy too, because while we eat & drink merrily along, we are planning next year's trip while thinking nice thoughts of Disney World, parks, staff and concierge lounges...