Negotiate good price

I’m still new to all of this, but I thought a salesperson’s job is to sell.  Not everyone is chomping at the bit to lay down big cash (and from what I have seen, if you are considering equipment on Audiogon, you are looking to lay down big cash), so the salesperson needs to ask enough questions to determine the seriousness of this potential buyer and what he/she is looking to pay.  Whether the OP’s approach was sound or not, I think that is secondary to the need of the salesperson to do their job and see if a deal can be had.

Personally, I have not gone into any high-end audio stores because I know that I am not going to spend tens of thousands of dollars on a system, let alone one piece.  And, as dill advised me, I don’t want to waste a salesperson’s time that could be better spent with an eager buyer.  That, and I don’t want to hear any equipment that leaves me feeling dissatisfied with the equipment I can afford.

“If I buy a car I show up driving the car on loan from a different dealer. He knows I have options.”

I laughed so hard, what kind of man pulls this sort of crap 😂

Utterly a Borat parody...well done! 

I again thank the group for the energy and the appreciation you have for me to improve in this transaction. Dshrieder if we line all these men up you would be close to the leader of this group. Some others are close but some I can see fear and lack of manhood. They poke like children without direction and post all day and don’t work. They fail to try to realize that courage is hidden between failure and enthusiasm and the ability to be free from fear and go back again with a humble attitude. 
I learned last night from my wife tells me to slow down because the audio is a feminine pursuit. She says this not in a bad way but to chase something like a sound and create something in the home is like a woman would do.  I tell her that I am a modern man and by the end of the conversation she is very much happy with me.
i will soften my approach like I am in the kitchen at a party without Covid.  I will connect in a kind and enthusiastic way over his system and pay him compliments and the glory of the biggest Maggie speaker will be mine.  I will pay him a fair price for combination and not ask him to ship it to my house at his expense but instead will take them home myself. 
I will drive them with big NAD. I prefer tube sound but they won’t work as the Maggie is hungry for power. I will go back Thursday thank you for support in this communication.

Love this guy..... lol