Suppose the amazon has an empty warehouse in D.C. that can be used to store a now line of upy camens a cost in the decision to sell the cameras? Yes, the warehouse now can be used and its value will not be wasted. No, using the warehouse or leaving it empty does not change cash flows: Yes, the company could sell the warehouse and the sales price of the warehouse is an opportuatr in the spy camera decision. No, the warehouse was purchased in the past and so represents a sunk cost