This is an extreme competition, so the conditions are regulated, the hardware provided, and the speeds are beyond what anyone could do at home. This competition is almost the Formula 1 of overclocking. Of course its nothing like the real world. If you want to see home setups, there are plenty online, but this is a hand picked arrangement for teams that do this on a regular basis. These are competitions, so they are pushing the limits on all fronts, not just the clock speeds.. LN2 is about as extreme as you are going to get for cooling.. I'm all for it, its just what these guys do for fun!