Those prices are for processing tomatoes. Not the kind of tomatoes you'd find at the grocer, rather the kind that will go into a bottle of heinz ketchup or a can of tomato paste.

They are grown differently and treated differently because appearance basically doesn't matter. They're also not required to be available for retail year round. They'll be processed within days of harvest in the fall.

Greenhouse in the desert can't compete with processing tomatoes. What they can compete is with the green house tomatoes sold in grocery store in the middle of winter.