It's not about cost-effectiveness (Score 5, Insightful)

That device is not marketed for your average user--it's aimed at the people who make overclocking CPUs and hardware their hobby. Sure, you might mock the stamp collector or the model train builder for spending thousands of dollars a year on things you would consider 'crap', but do they care? No. So what if the stamp collector spends $300 on a mint-condition stamp from the year 1917--it's to support HIS hobby, for HIS enjoyment, not yours. All the same--so what if the overclocker who buys a $130 Pentium 4 1.6A and a $500 phase-change cooling box (still a bit overpriced for a R-134a compressor, IMHO)? For him, that $500 is well-spent if it lets him clock his 1.6 GHz chip to 2.8 GHz. He doesn't care what the person who is content running a PII 400 MHz chip thinks.