Companies all have there own strategies to getting people to buy there products. When if comes to video games the developers like to spoon feed us little by little of what there game is through trailers, then once people see what the game is the have already decided if they want to buy it or not. When everyone cums when they think about the new upcoming game and when it finally comes out and people buy it some will get disappointed because it was hyped up to much.
When we think of companies like Apple who don't reveal what there next product is people know they are going to like it because it is something from Apple and everyone will want they'll put a second mortgage on there house to get it. read