You can always move off the major item under discussion and deal with a secondary element related to the total price. Conceivably, the salesman is limited in how much he can reduce the actual cost of the primary item, but he may have more flexibility and “give” in other areas, such as a trade-in allowance.
Therefore, you can say, “Well, if that’s your price, I’d like $150 for trading in my present refrigerator. It’s in excellent shape.”
If the salesman says, “What … ?” you interject, “All right … I’ll make that only $50 off.”
Now I concede you may not often do this with refrigerators, but people successfully use this approach when buying cars.