I shop at the Park Slope Food Co-Op in Brooklyn, an institution that positively screams "limousine liberalism." But the funny thing is that its actually significantly cheaper than shopping at a supermarket. So much so that I can buy organic produce and dairy there for less than I can buy the pesticide laden stuff at Stop and Shop. And despite its location in a yuppie neighborhood there is a significant minority of members who travel from poorer and working class parts of town to get the benefits. Obviously this isn't an option in most cities where there aren't food co-ops and health food stores are just big rip-offs. But its worth knowing that alternatives are possible.