Junk food Vs Real food

The argument has been made that it is cheaper to buy junk food than to go to the store and buy real food. The graphic below is meant to illustrate that it isn't really cheaper to buy fast food than to buy and prepare real food. Even if you bought the entire meal for 4 off the dollar menu, it still wouldn't be cheaper than buying and preparing the real food. It would only be lazier. So I think the real case people are trying to make is that they are too lazy to buy and cook real food.
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