Do any of these interest you at all? (If you had the money)(Which I don't)

Most of his list would appeal to the same people who buy Yellow
sports cars. To be seen.

It is great for everyone that R&D money goes into developing these
products as it inevitably Trickles down the food chain to the masses.
In my opinion this is why all of today's speakers sound WAY BETTER than those of the 60's.

"Most of his list would appeal to the same people who buy Yellow sports cars. To be seen."

Some people just like yellow color. I have no idea about who and why buy these speakers, though.

At RMAF 2018 I heard the smaller version of the Kryon audios in that link. They were my favorite of the entire show.. when I win the lottery Kryon Audio kit is on my list!! A truly magical design philosophy 

Elizabeth you are spot on the MBL ,they are  not only very expensive 
but my favorite speakers if I had the space and the cash to buy them.

MBL if I ever hit the lottery. $500,000 home, $250,000 MBL set-up, $350,000 Porsche GTRS (no stereo needed).