It's the market for lemons problem. If it's your job, it's worth it to learn all you need to know to differentiate between junk and quality. If you're buying on

It's the market for lemons problem. If it's your job, it's worth it to learn all you need to know to differentiate between junk and quality. If you're buying one of the 75 different appliances in your home, you'll probably just look at a review site, which can easily be gamed by companies selling junk.