Well, with the death of the HD DVD Player, Microsoft is now selling the Xbox 360 HD DVD player for $50. I've never extracted a diode, but I see this as a cheap way to get a 405nm diode, and within a year from now there might not be very many 405nm diodes out there, making this a prime opportunity to buy a diode that might become a part of laser history. A few years from now, when all your friends have their blue lasers, you pull out an old dusty box, pull out an old DIY laser, and with a press of a button all your friends are mystified by the violet beam. This is all just a speculation though.