You can see this design in the supermarket selling for $40. Having the Messner name on it means ... zilch. The high price means zilch (think sunglasses, watches, fashion clothes, ...). It is still just a pop-up with a door which will let the rain in. And it will still be difficult to pitch in a storm. Ventilation?
Erm, Roger, it's a little off putting to be so quickly and easily dismissed. I mean, it's not as if I know nothing about tents (in fact, as both someone who has used a lot of tents, made quite a few of my own, and as an architect who studied and built tent structures, I feel I know a little bit about them), and for someone who can't read Japanese you certainly do assume a lot about the tents. I defer to your experience and far deeper knowledge about materials and construction, but still... o_O
The Nippin tents I show here are designed to be used atop Mt. Everest (the one in the earlier video was used by Messner on Everest and Denali... the tents were custom built for him for all the conditions he expected to encounter). Sure the design is a classic dome tent in the vein of the ID MK1, so yes it does have problems with the door opening to the sky, but the breathability is partly augmented by its custom specified proprietary Gore-tex walls, called "Sara-Sara" (which means "smooth and slick" and has something to do with its breathability) and which can't be found anywhere else. A lot of serious Japanese mountaineers take Nippin tents as one of the most reliable tents made in Japan, and Nippin tents are not known by the average camper. And I can tell you, Japanese are VERY critical about details. That's why quality for goods is so high here.
Also, take a look at this page. Scroll down about halfway till you see the small diagram of the cord attachment system that you saw in the video. If you look carefully you can see that it has both a clip and the cord system... This system was designed to deal with the issue of sleeves in the wind, when it is often hard to get the pole into a sleeve...you have the speed and ease of a clip, plus the wide force distribution of a sleeve... the cord even forms a similar channel to a sleeve. It is most definitely NOT a cheap Wal-mart pop-up tent!
When the need for a vestibule comes up, while not as big as that of a tunnel tent (which I have used far more extensively than domes), Nippin does offer flies with vestibules that you can throw on top. This effectively makes it a double wall tent, which makes it warmer in frigid weather.
And last, take a look at this video of the Hilleberg Soulo being set up... it is almost exactly the same as the set up of the Nippin tent you saw in the earlier video, right down to the way the pole falls down during the set up and the way the clips go onto the polls.
Oh, and this might interest many of you, the tents, with poles, weigh just 960 grams. Not too bad!
I don't know if the debate about whether tunnel or dome tents are better will ever get settled (I prefer tunnels), but I think it is a bit obtuse to downright dismiss these offerings without knowing a bit more about them! I know cheap when I see it, and I wouldn't do that to you guys!
As an ending note, take a look at this collection of tents in Japan (scroll down). Japanese love dome tents and they are always wary of gimmicks and so don't easily try new ideas without proven worth. Japanese dome tents are light! Photos #6, 11, 34, and 42 are Nippin tents, By far the most used tents are by Arai Tent.