Found this article about the Mohegan Sun "re-chipping" later this year. http://www.theday.com/eng/web/news/re.aspx?re=7486220D-4778-436F-A5C7-6FD185C9BB00

Some interesting points about obsoletes and LE's with some good common sense thoughts from Charles Kaplan. Of note too is that MS has two million chips in circulation! The Tribal Gaming Commission is in charge of destruction and boy, do I hope they do a good job. I'd hate to see MS chip sets on eBay next to the Vinyard chips!