IDEA: When raising prices to customers, consider buying from them at a negotiated low cost.

When raising prices and the customer is balking, consider telling him that you can keep your price fairly low but he must give you very low pricing on items you decide to buy from him. Talk to him about he becoming a vendor also. He most likely will jump on this because he can offset AP and AR payments and avoid cutting large checks back and forth. Evaluate whether he is worth buying from as a vendor (potentially large account, multiple related company locations, potential larger contracts).