One thing to remember is that a surge protector that you use in your house does not last forever. After a few years it becomes a fancy outlet expander. Most articles suggest to replace every two or so years, but then it depends on the number of 'surges' that come through the surge protector. I plan to replace my in house surge protectors every 18 months.
When Should You Replace a Surge Protector? - The Home Theater DIY "So when should you replace a surge protector? Experts recommend you replace your surge protector every 2 years. A surge protector is rated in joules, which indicate how much excessive power they can handle when an electrical surge occurs. However, this figure can be hard to track as surges vary from area to area."