Personally, I think power conditioners are full of audiophile BS (like disciplined electrons, etc) but a surge protector with some sort of insurance is a good idea if it pays off. If you go the rest of your life and never get hit by lightning, it will be a waste, but if you experience what happened to me (lost a PC, high quality stereo preamp and power amp, DVD player, surround receiver and TV in one strike) you will appreciate a payout. I got money from the surge protector company as well as my homeowners insurance. It didn't replace all of it, but it decreased the pain.