If you want a good deal on Black Friday. You have to be very flexible in part choices. You also have to be willing to stand in line at a store and hope no one beats you to the deal. Odds are you will only get one deal. As other deals will have sold out by the time you get that one deal. If you get it.
Honestly its rare that I've seen a great Black Friday deal on good components. Just stuff no one wants. Usually the deals are something more universal like a low end laptop or big screen TV. Items that draw a crowd. A GPU or SSD deal won't draw a crowd. If there is a deal on a big ticket component. They'll have one or two in stock.
When there are deals. It's because they start jacking up prices in late September for a great Black Friday deal (ie prices you could have got in August and early September).