You can use your other contracts as leverage. I have a large number of contracts where I have agreed that if I offer any new customer a larger discount I have t

You can use your other contracts as leverage. I have a large number of contracts where I have agreed that if I offer any new customer a larger discount I have to turn around and provide the same lower price to them. This means that if I provide a new customer a higher discount I lose money since the new discounts to my existing customers are greater than the revenue from the new customer. I just tell all my new customers this and the whole issue of special pricing goes away.