there isnt much difference other than the pesticides and tax incentives for the organic big wigs. if you go to Whole Foods and put your organic tomatos in your recyclable cloth bag then your there for a bigger reason than pesticide use.
they got shit like Tower Gardens now a days, or you can build your own version for cheaper with Home Depot/Lowes/OSH shit. eventually there wont be much of an excuse not to grow your own veggies unless you just dont fuck with'em.