Home grown chicken eggs from chickens that run around the yard: THEY TASTE LIKE STEAKS. GOOD STEAKS. In other words, they are so much flavorful and healthy than storebought, it blows your mind.
COST - Four chickens will cost you about $150 over three years. They will give you about 750-900 eggs in a year (average about 67 DOZEN cartons of eggs).
Now, to tomatoes. If you have an average ability to taste, with no physical hindrances to such, take a chance and buy one of those Topsy Turvy tomato growers. cheap. Grow your tomatoes. Then when you pick them (they should fall off the vine with just a soft pull), go to the store and buy your best, most expensive tomatoes.
Separate them. Cut up each source of tomato. Invite a few friends over first, of course. Eat a raw tomato from each source (you should have a cards faced down identifying each tomato batch.
I guarantee that not one "tester" would pick the store bought tomatoes, no matter HOW "organic" they were, or expensive.
A tomato picked that YOU grew, and eaten the same day you picked it, tastes like a FRUIT! hmmmm.... I wonder why

People, learn to be self sufficient. It's time. Nothing more to be said.