did this have a club nintendo registration code with it? If it did you could list that as a seperate auction they fetch anywhere between 100 and 500 points on average. The best part is that they can be emailed to your customers so no shipping costs and quick deliveries.
here is a quote from this site, all about the new dsi.... http://en.wikipedia.org/wiki/Nintendo_DSi "Developers reported the console enters one of two modes for running software; a native mode, allowing access to the system's extra processing and memory resources for DSi-exclusive software and a compatibility mode for software able to run on DS and DS Lite consoles" Meaning the new dsi will still play the games made for the first ds and ds lite