You have a job and an apartment you lease out. You made a great deal on the apartment. Now, your tenant suggests he should pay less, since you have another inco

You have a job and an apartment you lease out. You made a great deal on the apartment. Now, your tenant suggests he should pay less, since you have another income and you already make a profit. Do you? I don't understand your point - if Nintendo or Sony could achieve larger margins, they would.