I have replaced all 5 fuses in both of my BAT VK200 monoblocks with the HFT fuses (waiting for the moans and groans). Those of you that are quick with math will realize that this is an almost $300.00 upgrade cost. I try to rate all audio purchases on a cost/sonic benefit upgrade, and in this case, the $300.00 was money well spent. Lower noise floor and better micro-dynamics on a system that had been very good prior to the addition ( Shunyata and Nirvana power cords, Audio Magic Reference conditioner, 3 dedicated AC circuits, etc). I have to agree - the power cord analogy is close to the additional improvement in the system, but at this level, the HFT fuses were a significant upgrade and cost a lot less than most good power cord upgrades. Yes, $30.00 fuses are expensive compared to 30cent fuses, but the sonic benefits that occur are worth the cost, at least to me.