While I agree that upgrading your electical is good (as is adding a surge suppressor at the panel -- where it's directly next to and connected to earth ground), I bought a line conditioner simply to get the number of outlets up to a reasonable degree. I have two amplifiers, two satellite receivers, a sub, a preamp, a VCR, a TV, and one or two more devices that need to be plugged in. I had two surge suppressor strips, but I was daisy chaining the strips. A line conditioner allows me to plug everything into one location. Also, I rent. It's pretty hard to go about upgrading someone else's electrical system (although I have rewired some of the outlets so that neutral and hot weren't miswired).