$6 Million Dollar Man?

Well it's definitely a continuation of a young man's dream of building the ultimate audio system, somewhere down the line. He got the money, and said "I'm doin' it!". Good for him. Hope it's everything he imagined it would be, and more...including the cables on the floor, ha-ha!
No really, "the ultimate system" certainly means something different to each person. If it were my money, I'm thinking I could achieve the same or better results with the similar "equipment only" all out system approach for about $4.5 million less! Oh, and It must get real hot in that room with all that equip, regardless of the size. Unless he's got a real silent HVAC system, he'll hear that drowning out his dynamic range on the bottom end, trying to keep things cool in the room. But for $6 million, I hope he's got that part figured out.
If I were doing a high end tube system, with esoteric speakers and components, layin all about the room - ala, bachelor pad style" - I'd be looking for higher efficiency speakers, perhaps active, and going with lower watt high end tubes. The woofers would be handled with strong solid state. And, such as the case in this system, looks like he's got a small listening area, designed for 1-4 people at best. With that arrangement, I'm thinking I could get away with some Avant-gardes Duo's all around, get likely stronger dynamics, eliminate the acoustic reflections around the room, and let the sub towers be handled by the solid state offerings.
As for the projector, I guess if you have a massive screen, you go his route. But, if you can move it closer in, such as for a small group, you can get away with 1080p and an anamorphic lens, and get the same effect as he get's - since he must be up scaling 1080p anyway on that 4k light canon for a projector he's using at $250k.
I'd go smaller setup for 4 seats max, save on all the parts, and get the same or better effect I think. But, to fill a large space like his, I guess that's what he ended up with, obviously. If my room were that big, I'd be filling it in with more setting, custom decor, hiding the gear and isolating it out of the room, and going active probably.
I'm sure there's a million roads he could have gone down. I just can't help but thinking how I would have managed the $6 million differently...came up with a clean nice decor look, and made it more, well, livable! It's a bit messy and cluttered up for being a civilized adult worth millions, I'm thikin. I'd a figured a cleaner looking system, for sure. Cool though

Yeah, there ya go. I like multiple room setups, like Mapman suggested previously above. One custom theater setup for at least 12 people. But, if not, then he could easily get the same overall perceived immage on a smaller screen setup for 4 people, er what have you. (which is what he has anyway). Then, one 2 channel all out room. Another smaller 2 to 4 seater that does high end multi channel music and movie playback, with high end Runco or JVC 1080p anamorphic. (of course, the acoustics would be tweaked to the max). And the rest of the house would be high end multi zone party inwalls and subs and such. Then, a nice little tube and sat setup in the bedroom and a flat screen.
All of that, and I'm thinkin I could still get it all under $1.5 million!!
yeah, somewhere along the line I think dimminishing returns kicked in for this guy. But hey, you can always just double up in the stock market a couple more times and spend more!
With all of that, I'm

Actually, you couldn't get an endless slew of "A list" performers in exchange for that money! I think some of the top people get like $100k per hour, if they do such part time gigs at all. At that rate, you'd blow through the $6 mil in a few weeks if you were to pony up ever night! Ouch!
Yeah, that and of course you at least know you'll get their best when you buy or play a recroding. Live, you might be disappointed if they're not motivated or into it that night, off night, bad setup, and so on. Naw, the $6 bills is cheaper...plus you can choose your own agenda, and it's all yours.
Yeah Diva's and moody primadonnas' needn't apply.

My first problem in that room - besides all that equipment strewen all around the room - is equipment being in the same room with the sound system. No matter what, you're still getting feedback into the system.
The floor reflection? Yeah, it's not as big of a problem with that style of speaker (especially if it's first order crossovers). With all that reflection/diffusion throughout though, unless there's enough mid/high absorption in that room, it can sound a little bright and thin in weight. The room probably absorbs enough bass overall, given it's size. My experience with a similarly large space -particularly the main sound dubbing stage at USC - is that mid/hi aborption is needed to balance out the sound in a largish space. The floor could, I agree, use a rug thrown down likely. But I'd have to listen to that system in that room, and see more of the acoustics, ideally. Still, from what I see, it looks like a throw rug, at very least, could only help between the speakers and seating, in an "equipment room setup" type of system like this.
The little glass coffee table? Well it looks like it was intentionally kept on the small side, which is good. Better would be a firm aborptive padded top table, if you must have one.
The lights are likely high enough above the seats to not be in the eyes, and will only break up sound on the ceiling a bit, if enough of them. I'd be more concerned here with making sure they didn't rattle, if anything.