This isn’t like, basic necessities food. This fast food.

The cost is the manpower and prep involved in being able to deliver food, fast.

The deals are there to make you check the rest of the website and be acquainted with their products, in exchange you get a price reduction.

There is no ripping off, you’re just not doing an additional bit of trading. If you don’t want food at the price Domino’s offers nobody says you must purchase from them.