If you have a computer, television, or home theater system in your home or office, you had better have them connected through a power conditioner. Power conditioners filter and clean the power coming out of the wall before it goes to your home theater equipment. What this does is prevents undo stress on your electronics power supply. Power supplies are the most commonly failed item in home electronics. Adding a power conditioner is like adding an insurance policy.
In fact many of these power conditioners come with lifetime warranty policies. Lets say the new LED TV you bought is connected to a power conditioner. And lets say you live in an area of the country that gets lightning storms like Ohio. One day the lightning hits a power pole 7 miles from your house, your neighborhood will feel the effects of that blast and most like destroy your electronics. But you were smart and hooked up your LED TV and the rest of your home theater components to that power conditioner that you purchased from Man Caves Home Theater, so your covered.
Normally the power conditioner would take the hit and protect your equipment. All you would need to do is purchase a new power conditioner. Lets say that the power conditioner fails to protect your equipment, well you simply call up the manufacturer of the power conditioner and they will re-imburse you for all of your electronics plugged into the power conditioner.
We come across about 6-10 clients each year who have lost electronics due to lightning storms. These events have cost some of them up to $30,000 because they were not using power conditioners.