For people that have a full service retail shop that actually keeps their half of the consumer bargain, I agree, those people should pay full retail price. Since the vast majority of audiophiles do not have such a retail establishment, we should not have to pay full price.
I do not have a dealer providing any of the following:
1. Large inventory of demo-able components and speakers.
2. Ability to visit many times and just browse with no pressure to buy until I'm ready.
3. Knowledgable advice.
4. Post sales service.
5. Trade ins welcome.
Instead, I have local dealers with zero demo stock who have not even heard the product I want to buy. They know far less about the product than I do. Yes, they are willing to allow me to walk in, order the multi-thousand dollar product and let me pick it up (and carry to my car myself) when it arrives and only ask for a mere 40% of the sales price for their service. No thanks.
And yes, I'd love it if all high end was simply sold on amazon at the lowest cost possible to the consumer. Really I don't see what the difference would be to most audiophiles....