Comment by analog31

This is actually a widespread and common business situation. I used to work for a company that made a specialized component, and a customer called us up one day and said: "We have to knock 1 cent off the cost of your component, or WalMart will drop our brand from all of their stores." More broadly, a lot of businesses are at the mercy of a single big customer or supplier. Texas Instruments could discontinue the chip that I use in my product, sending my side business into a tailspin. I had to buy a lifetime supply of another part when it was slated for obsolescence.