That's what the other restaurants say I really doubt it .
Here we have the best burgers in the world!
Well sweetie that's just what is in demand.
What is demand?
Well you see demand is what people ask for and want. Say you needed to get somewhere but you didn't have a car you could walk but what if it was a long distance? You would take a bus or train or plane. Most people Choose what is cheapest.
People are picky about what the want and for demand company's take that to their advantage and they make money and people are happy.
See demand is what people want and what fits best with them.
Take trains for example because after the civil war someone had an idea that let them transport goods and people faster and thus trains became a thing.
But soon enough cars and planes became a thing and people started using those because it was cheaper then using a train and so the car demand went up and same for the planes. The higher the prices the less the people and so the same the lower the prices the more the people