Even though the above image is specifically related to the PS3, it technically applies to all types of video game platforms. According to this graph, games with only trailers released earn the most sales, whereas games that release demos see a noticeable drop. On the other hand, providing the public with neither a trailer or demos sees a significant drop in the number of units sold. In general, gamers appear to cram for demos, which makes this data surprising. Personally, I feel that, although trailers can provide consumers with knowledge about the game in general, demos are the better choice as they can help video game buyers to determine if the demo’s gameplay suits their interests.
