This might just be the end of brick and mortar

Nada chance !!!

Low fi, mid fi and cheap Chi-fi be may be ordered up online ....sure ...but quality built and superior performance High-end hi-fi is only available at a dealer; and that coupled with a relationship with your dealer will not be replaced by these types.

For some reason I always dread going to Best Buy and only go there when absolutely necessary. Never listen to audio gear there.

I think the end result of this will be that the B&M stores will cease to offer the brands that Music Direct carry, e.g. Marantz, Denon, etc, but other brands that require B&M dealers will keep their doors open.

What!? Real high end is available direct from the builder and stores are not the only place to get real high end gear. Where did that statment come from?

Strongly agree with Grannyring. There is great gear at every level available direct from small builders.