This method started late 2013 but worked. It was verified by Discover customer service this year and said it will work for this black Friday too. Google "slickdeal discover price protection". Has a detailed steps on how to do a claim
Discover credit card has a price protection plan. If you buy an item using their card and the price drops within 30 days, they will write you a check for the difference. Works for black Friday items too. Has to be the exact same model number if u buying to price match.
Basically, buy the exact item that will be on black Friday days or weeks prior with your discover. Kickback and relax while people fight and stand in long lines in the cold for those few must get items on black Friday. Call discover next day in ur underwear to file claim for price drop. Receive check for difference in 3 weeks.
It works for bestbuy panasonic 50" 1080p led TV for 200.