Nobody knows about it. The successful people who have great ideas for products aren’t promoting their products when they’re up for sale. Those people are promoting their products months or even years before the product even comes out.
This actually allows people to know about the product. When some people know about the product, they tell their friends, and more people get the message. Soon, you already have a giant fan base waiting to buy your product, and you haven’t even put it up for sale yet.
Apple gets so many sales for all of their new devices. One of the reasons they get all of those sales is because we know about the devices well in advance. Months before the actual device comes out, everyone knows what the device is and what it does. The iPhone 5S was trending on Twitter well before it was actually released.
Apple doesn’t make the release dates of their devices a secret. Everyone knows when the next big thing from Apple is coming out. If the next iPhone came out at 8 p.m, everyone would be on their computer at 7:59 p.m ready to click the “Buy Now” button somewhere on Apple’s website.