> Normally vegetarian food costs less than meat. It's because the animals need to eat (surprise surprise) vegetables! When you eat the vegetables directly instead of having the animal eat the vegetable for your, it's cheaper.

Actually, as far as I recall, a counter argument to this, is that fresh vegetables are more expensive since their shelf lives are a lot shorter. I can buy most types of meats (chicken, beef, etc.), freeze them for weeks and the taste would still be great, while fresh vegetables will normally only last for a few days.

Of course you can go for frozen vegetables, but this is only limited to some vegetables, and in my opinion, don't taste as good as fresh vegetables.