Actually, I thought the commercial was quite funny. You probably saw the shortened version. The extended version has it turning out to be Wario's mall, where he encourages his workers and customers to be greedy. We also see a lady taking a whole plate of french fries from a sample lady's table, and a little girl tossing a half-dollar coin into the fountain (a Wario one) and fifty people running to grab it. The extended one doesn't have the "'Tis the Season to be Greedy" line it it, though.