Tomato Plants

How many people grow their own tomatoes every summer? I have been doing it almost my whole life. We had a huge garden growing up with every vegetable we could grow.
Right now my back yard is too small to have a large garden, but the 20 acres up north is just right. I manage to fit in about seven or eight tomato plants. I am thinking about putting one in, I just don't know how I would keep the deer out of it... I guess I could build a fence, but that would cost too much. Plus, they could just jump it... Any ideas?