Roger's World of Pets is considering adding cat grooming to the array of goods and services he currently provides. He estimates that consumers would be willing to pay $25 per cat for a 1 hr. cat grooming appointment. He also estimates that he would need 2 workers per cat (1 to hold the cat down and the other to groom the cat). Wages in this labor market are $15/hr. Using marginal analysis, Roger should: