On the other hand, (about High end brick and mortar shops) without an audition with my own music, over several hours, twice. i would not have purchased the stuff i now own. Purchased from that dealer. $20,000. worth of stuff.
No way am I going to spend that sort of money without hearing the stuff and deciding if it is for me.
I would buy everything used if i could not audition the new products until my personal feeling of yes this will do, is met. And i could NOT do that at a show, ever.
So with no dealers, the High end IMO would be utterly dead. All there would be is really wealthy folks who could buy whatever unheard, and who can afford to take a chance, guessing if it will be suitable. or folks buying used stuff becuse that is the ONLY way to buy unheard stuff.
You can buy, try and sell for very little loss. Basically the cost of shipping if you play the game well.
So IMO without brick and mortar stores, only small (read cheap) stuff would be sold direct, and all the vast middle ground, from $3,000 to $30,000. would disappear entirely.
I have no problem buying a set of headphones for $1,400. or a used headamp for $1,250.. but to buy a new product, unheard, for $5,000. each? That is a pre and amp plus phono for $13,000.? No way dude, No way.
So i am glad, (if that is the future, no B&M stores) that i probably bought the last 'big' stereo purchase of my life last Spring.