Personally, I would like to see at least an option for plexiglass on the perimeter. I feel like some might want a bit of protection from things like sneezes, or rogue squirt-gun blasts. The “case” is basically a plate with a clear acrylic pane in front of it. It can stand upright, be rotated horizontally, or even screwed into a wall if you want to show off a custom liquid coolant loops or something.
Interestingly, Thermaltake is providing “3D Printing Accessory Files”. I somehow doubt that this will be the CAD files required to lasercut your own Core P5 case, but it's designed to allow makers to create their own accessories for it. As such, this sounds more like guides and schematics, but I cannot say for sure because I haven't tried it… and they're not available yet.
The Thermaltake Core P5 will be available soon for an MSRP of $169.99, although it's already at a sale price of $149.99. This could be just a pre-order discount, or a sign of its typical price point. We don't know.