It's called Black Friday because it's the beginning of the season when many stores go from being in the red to being in the black. That doesn't sound like much of an economic lesson for you, but that's the point. Black Friday isn't for you. It's for the stores.
The biggest mistake that people make on Black Friday is that they assume that the most popular day of the year to shop is the best day of the year to buy anything. If you're walking into a store at 5 AM Thursday morning, you're expecting floor-kissing prices in every corner. But store-wide discounts aren't in the best interest of the store. It's more common that a few tantalizing items will be sold at a loss to lure shoppers while smart floor design guides them toward more profitable (even full-priced) items. "Black Friday is about cheap stuff at cheap prices, and I mean cheap in every connotation of the word," Dan de Grandpre, a veteran deal expert, told the New York Times.
Stores know you're making this mistake, and they know how to manipulate floor traffic to their higher-margin stuff. ...DerekThompson,TheAtlantic
Thompson goes on to caution about what you're facing after a couple of hours of shopping (or sooner): "...When you feel exhausted, your brain gets drunk with stupid. It's decision fatigue, it's leg fatigue, it's everything fatigue. Retail stores know this. So they put cheap stuff tantalizingly close to our arms in the checkout aisle. It's so cheap, and small, and cute, I have to have it, your decision-fatigued brain will plead. Don't listen."
