WHY IS THERE SO MUCH HATE FOR THE HIGH END GEAR ON AUDIO GEAR?

This is all negative thinking! This is not good!

You go into the store and want to buy something, you have your full right to think it is expensive or not, You have full right to buy or not.

 The  Seller think it is the hater, I will say it is a big mistaken, and it is the Seller's hater to the possible Customer.

By the way, OP is not talking about the hobby, he  is commenting his business and ......( omit a lot)

I'm surprised that a dealer would need to ask this question if there's any real selling that takes place in his business.  Human nature dictates that the more comfortable we are with our decisions for everything from stuff to life's forks in the road, the less negativity we feel for differing opinions.  If anything, if we offer support to differing opinions about other folks' gear, we can learn from their experience and choices.  It could be as simple as differing hearing and listening abilities, one of which we cannot change, or they may have helped us find our next aha moment.  The past two trips I've made to high end stores have left me feeling really good about my two systems at home, even though they cost me a fraction of the $100k plus systems at the dealers.  Maybe my satisfaction comes from knowing I could easily spend a lot more, but am amazed at how good my gaggle of gear sounds to my ears.  But I will keep looking and listening.......

“When it comes to price people can charge what they want for what they create. If you don’t want it. Don’t pay for it.”

Dead wrong. Economic systems are not something handed down from God: they are social constructs. If you don’t like $1.2M audio systems, instead of not buying it, change the system that caters to millionaires. You are just being an apologist for laissez faire capitalism nothing more.

That said:

I’ve been at this hobby for 55 years. There was a guy named Hafler who built Dynaco into a little juggernaut of high quality - affordable!!! - gear for the lumpen proletariat types like myself. Hundreds of thousands sold. Rebuilt Dyna units are still the best bang for the buck out there today. 
 

Prices today are a reflection of the (passive, like you maybe?) acceptance of the grossly unequal economic structure we have in the U.S. today. It doesn’t have to be that way. 
 

This is the main reason why I don’t bother with new gear, I just keep the stuff I have refurbished and in top running order. I’m here in audiogon mostly out of curiosity or FOMO. But I will put my 38-67 year old gear up against anything on the market today and while it may not be the best according to some, it will righteously acquit itself.