Games at some platforms (like Steam) usually have some screenshots and videos attached to them. Almost all publishers give out some videos to present the game and to make players interested. But a whole lot of those videos only show some rendered battle scenes, not ingame-graphics / parts of the interface / etc. As an example (a very well made video in my opinion): one of the Dragon Age: Origins trailers.
But somehow, those videos don't influence me if I'm going to buy a game or not. While they are nice to watch, a gameplay-video or something presenting the features in the actual game do influence me a lot more. I'm usually searching for those, and looking up reviews / asking friends who already played the games.
So I was wondering: Do such videos, only showing some cinematic sequences of the world, with no information on story / gameplay / graphics etc of the actual game, influence you?