It depends, there are plenty of trailers that show legit gameplay, or story from the actual games. If its legit and put together cinematically then im ok with it. I normally dont like straight gameplay videos since I really cant watch someone play a game and find it interesting for long. Its probably why i dont understand how people watch people play games lol, but its also not my generation either. For me the ultimate trailer experience is something original like Metal Gear Solid.