I think Mr. Mullins misses the point.
I work in the entertainment/media business and this kind of stuff I hear every day from clients. Unless I have an ongoing relationship with the client or see very real upside potential going forward, my response is: "How about you pay in full this time and then when we have a mutually satisfactory business relationship, we'll find ways to to give you some breaks based on volume?"
My experience is that, in most cases, if you sell yourself for a dollar at the onset, it is very difficult to sell yourself for 2 dollars going forward.

I think a better parody would be two people sitting at a restaurant, first getting served all the wrong things and then being billed far more than the menu states for either their correct order or even the way the order was delivered. Then having the waiter and manager all offended when they are questioned about it. Personally as a corporate buyer, I don't haggle over prices. If a vendor gives me a ridiculous quote, I just take my business elsewhere.