When I think of the decor and decoration expense in some hotels in which I've stayed, an "in room" small refrigerator, widely available for substantially less than $100, especially in quantity, would be a amenity worth far more than a microwave, now showing up in surprising venues. I suppose that because of potential use by underage guests, beer machines (with even, horror of horrors to the oenophiles, wine) are out of the question.