You have received two exclusive invites for the same evening at no cost to you: one to a gourmet dining experience at a renowned restaurant, and the other to a concert by your favorite band. Assuming both events are appealing to you and you cannot attend both, as a rational decision-maker, you should choose the dining experience. Always, because it offers a more exclusive atmosphere only if you value the uniqueness of the dining experience over the concert only if the total satisfaction anticipated from the dining experience exceeds the enjoyment you would derive from the concert only if the total utility of attending the dining experience outweighs the cost, including any opportunity cost of missing the concert.