Black Friday

Excellent! Whilst I fully agree that such an idea seems brilliant, having more than one Black Friday, I do believe it's also not that excellent of an idea. Mainly being, companies can't exactly afford it too often.
A doll that cost $40 to buy was maybe $3 to make. That's a lot of profit. But, not all will sell. You've gone to stores and seen the same toy in the same spot for weeks, haven't you? It's almost a tvtrope. Now, if it were cheaper, it would fly off the selves. But it would be less. It would take, if lowered to $5, 8 sold to equal one's price, and to match the profit would take almost 20 sales. Take note that those $3 does not account paying salaries and such. It leads to a lot of profit quickly, but not quick or profitable enough to be too often.
I'll use Steam Rolled- Fortune Street as an example. In it, Ross puts all his money into a fruit stand, making it cost people who step on it OVER 1000. Granted, he got last place, but that's because he did it early on and in a place one had an easy way of avoiding. Notice how later on, when people had more money (or had less money), they were more willing to take the risk? It's because it was less of a loss. Had he put it elsewhere, it would've been much more profitable.
Companies (I assume) are similar. They don't like risks. Black Friday is a huge risk, as if they don't sell well, they've lost a hefty some of possible profit, in which case, not selling at all would have been better (if they sold less than 20, referring to my previous example). Having more than one Black Friday greatly increases the risk. How many people do you think will say, "It's going to be way too packed. Plus they'll be another one later this year. I'll just stay home and go to the next one." ?
That greatly increases the odds of our fictional company selling less than 20 dolls that day, damaging our profits greatly.
The idea is certainly appealing, but in a similar fashion to a casino, at least for companies.