I looked at all of those. Material is aluminum, everyone uses them. Their design looks very similar to Lian-Li (which they may as well be copying) and SilverStone. Most of the other specs can be found on similar, cheaper cases. And while the minimalistic, industrial design is nice, again, you can get something similar looking, with as many features for a lot less.
In fact, these cases look like they're are more or less designed to be small scale servers or high performance computers (as in, for actually computing stuff). Not for something like playing video games and going on the internet.