jefequeso: I'm interested that The Music Machine has a higher refund rate than The Moon Sliver. I suspect it has to do with the price point, since I think most people (including myself) agree that it's easily the better of the two games.
In addition to pricing point, a couple other possibilities about the difference in refund rate between The Music Machine and The Moon Silver:
* The Music Machine with its unique style and high rating (92-97%) might be a game that people have higher expectations in and are interested in trying out right after buying, whereas The Moon Silver had been on the market for a while before the new refund policy and people purchasing it might have different expectations going into it (70-75% rating) or are simply putting it on a backlog to simmer beyond a 2-week period.
* The release of The Music Machine coincided pretty closely with the new refund policy, so there may have been an effect where the newness of the game and the newness of the policy had some sort of correlative effect due to the timing of the release and both being in the news / promoted close together.
* The sample size between The Music Machine and The Moon Silver are quite different, so I'm not sure if the small percentage difference in refund rate is particularly high in statistical significance.