Rib & Wings-R-Us is considering the purchase of a new smoker oven for cooking barbecue, ribs, and wings. It is looking at two different ovens. The first is a relatively standard smoker and would cost $50,000, last for 8 years, and produce annual cash flows of $16,000 per year. The alternative is the deluxe, award-winning Smoke-alator, which costs $78,000 and, because of its patented humidity control, produces the