Are you from the US? Here in the Netherlands fresh takes 25% of the supermarket area and is way cheaper. You can get even better deals on the market. It doesn't help you i guess but I think in most countries its more normal to cook at home with fresh ingredients than it is to eat out or to use processed stuff. Maybe there are such areas in the US as well.

Things such as tomatoes are available all year by the way and generally pretty cheap.

You don't exactly need fresh ingredients for that.

In most recipes, if the tomatoes are not in season you'll have better luck using canned tomatoes anyways.

Many traditional recipes actually call for canned tomatoes over fresh. The canning process seems to affect the flavor in a positive way.