I think it would be worth it for Linus to look into why all of these passive cool cases fail and/or are killed. The most famous Zalman has been discontinued too... These got so much interest too - and aren't insanely expensive. So I figure there might be another reason! Perhaps chipsets without dedicated heatsinks / head pipes die early? No only don't these have the potential of failing fans or pumps, but they aren't moving dust into your system. (Although, Calyos's design is idiotic - having all your components exposed / not in a case.)