Mike's Barn.

Thankfully I've experienced it in person and didn't have to watch the video.  Mike is very kind and gracious and has hosted our local music club on a couple of occasions.  His system is the best I've ever heard and I learned a lot from him.  I believe he is retired now and able to spend as much time as he wants enjoying his incredible system.

Rich people have different barns than me. Aint life grand?

Calling it a "barn" is unfortunate.  It may have been mentioned in the video (I didn't watch it), but Mike bought the property because of the barn.  Not to speak for him, but from what he told us it sounded like his vision was to transform it into a world class listening room, which he did.  When you visit, he doesn't talk about his "system", he talks about his "room", which he has spent years tweaking and considers the most important component of his "system".  The gear is incredible of course, but the room brings everything to life.  Jealousy and envy are not good looks for anyone.  

If anyone can explain why one might intentionally have two turntables, I'm curious.

I currently have two turntables in my main system. One costs about ten times as much as the other. I use the "nice" turntable and cartridge with my better records. I have some records that are less pristine that I still enjoy mostly for the music and would rather not wear the stylus on the expensive cartridge with those. Others have more than one because they sound different and may prefer one over the other with certain types of music. As someone else mentioned, some like to have a separate table for mono. I'm sure there are other reasons.