I have seen many different blogs on cooling CPU's down to -25°C to -40°C regulated with phase change refrigeration systems. I've seen them sold in a couple of different places on the net, and some beautiful integration into standardized computer hardware boxes. But nothing available to cool below -40°C. I'm wondering this: What are your thoughts on a system offering -80°C? Something that could be bought and used in the same way these -40° systems are.