You might be interested to learn that retailers often look at www.gamestats.com's GPM (Game Popularity Metric) score before placing orders for games. The GPM measures the overall popularity or 'buzz' of a game.
The GPM calculates how many different people have put a particular game on their wish list, requested updates via emails, etc. What makes gamestats' GPM unique is that they look at an individual's IP address to ensure the score isn't being manipulated.