$18 for one chicken is not the flex you think it is. By the time you eat it cold on day four, you'll be paying five bucks a meal for dry meat and wishing you'd just grabbed the $5 rotisserie bird from Sam's Club. Costco knows exactly what they're doing, they hook you with the cheap chicken at the front of the store and you walk out $200 lighter on stuff you didn't need. Do the math on what that bird actually cost you in gas and impulse buys.