I research the heck out of products online, then go in to buy them locally if they're available and not outrageously priced. Unfortunately, many salespeople these days just don't know what they're selling. Their goal is to sell you something, your goal is to buy yourself the most appropriate something for your use. These two goals are usually mutually exclusive, so I do prior research on the internet to gain knowledge BEFORE shopping. Prepared thusly, 99 times out of 100 I know more about the product in the store than the salesperson does.