If you live near a Fry's Electronics store, and are interested in buying a DS Lite, they have a sale going on where it's only $79. Only comes in two colors, Cobalt, and Crimson. It says shipping unavailable so I think this might be in-store only but it was worth a post. Since the DS Lite is discontinued it would be a good chance to pick one up from Fry's.
http://www.frys.com/search?cat=0&start=0&inq=ds%20lite%20hardware&resultpage=0&query_string=ds%20lite&pType=&y=0&x=0&rows=25&fq=m10099998%20NINTENDO
http://www.frys.com/search?cat=0&start=0&inq=ds%20lite%20hardware&resultpage=0&query_string=ds%20lite&pType=&y=0&x=0&rows=25&fq=m10099998%20NINTENDO