When you sit down and calculate the value of all the electronic devices in your home, you might be surprised at how much they are worth. Electronic devices can be very expensive, and to top it off, they are usually very fragile as well. So imagine a surge coming through your power lines and frying them all. Not a very pretty thought is it? This is why it is worth the money to invest in a good surge protector for your electronics. These devices are built to protect you against that worst-case scenario.
Surge protectors should have an indicator letting you know that they are functioning properly, and you should make a habit of checking this regularly. The reason for that indicator is that there is a risk that your surge protector has served its purpose a few times. They are only built to be able to take a number of surges before they fail, and when that happens, you will need to replace them with a new one.