Best Buy Magnolia is what passes for a High End dealer in my area. We had 2 or 3 bm dealers at one point, but they all faded away. I am primarily a value/used buyer, but I made sure the allocate some purchases to my local dealers. They were nice to deal with, and did not condescend to me or assume an arrogant attitude. I have come to realize these were the exceptions, and I was lucky to have them as resources.
I have travelled a bit for business over the years, and have had opportunities to visit dealers in other (larger) areas. Many were some combination of rude, condescending, arrogant etc. Several were essentially drop shop clerks- no inventory, all sales at MSRP, then purchases are drop shipped to the buyer, with warranty support from the wholesaler/manufacturer. These people litterally took your money upfront, then entered details on line and tole you to expect delivery in about 2 weeks !
IMO if a BM wants to justify their higher costs, then they have to deliver higher value. Education, opportunities to browse, delivery and warranty support are just the tip of the iceberg. Allowing for in home audition (with a deposit of course) would build good will. Buyers now have a worldwide market from which to purchase, and a physical dealer has to justify their place in the sales chain. Very few provide enough value to justify their existance.
If one wants to invest some time, carefully purchased used equipment allows for an extended in home audition, and then resale for your cost if the purchase does not work out. With Covid after effects, more buyers are migrating to this mindset, and realizing they enjoy their purchases and the process much more because they are in control.