Growing up a century ago in sunny Calabria, on the shore of the Tyrrhenian Sea, my grandfather would never have dreamed that the common shrimp and calamari he had to eat every day would ever be considered a luxury; but for his grandson, growing up in Chicagoland sixty years later, a thousand miles from any coast, they certainly were. A luxury, a rare treat. These little extravagances -- not the major ones like Rolls-Royces and Ferraris -- are important to one's enjoyment of life, and they represent, as much as anything else, the great opportunities of America. For here, even...