This is something I had to teach my dad. But he believed it thoroughly until he had a few high purchase items fail outside of warranty. My advice to him has bee

This is something I had to teach my dad. But he believed it thoroughly until he had a few high purchase items fail outside of warranty. My advice to him has been look for customer reviews and he suspicious of the positive ones and aware of all the negative ones. My other advise is buy from a reputable distributor like Costco who makes returning something incredibly easy.