Years ago, I printed the Dirty Dozen and Clean Fifteen lists, taped them onto my refrigerator. Have been following that list. Organic is really not much more $$$.
The tomatoes in the supermarket are bred to maintain form traveling long distances, and to look good, not to taste good or be nutritious. Then they are picked before they are ripe, travel long distances, and are gassed to make them red. To me, they taste terrible.