I don't use the word "splurge." I use the word "invest." But yes, like many earlier commenters I am about the free-range eggs, the organic or at least non bovine growth hormone milk, and the steroid-free beef, wild-caught fish, free-range poultry. I am really not into cancer, and thanks to the decades-long denial of the tobacco industry that it was doing anything other than giving its customers what they wanted ("yes please! we like arsenic, cyanide and shellac in our tobacco! more! don't ever stop!"), I can't trust that industries won't put toxins or carcinogens in their products to make them tastier or keep them looking fresher or reduce their processing costs.
Consuming organic and natural foods is a good way for the unenfranchised (think immigrant laborers who
do buy organic because they know how food is treated, people who can't vote, people who don't have $2000 to throw at their favourite politician at fundraisers) to make their opinions count.
Nina Planck in her Real Food Web site wrote an
article about how the poor can even afford organic food.