Do you still wear them?
WSM 2004 version: used it too many times, hundreds of washing faded it seriously - however, the tailoring and the pattern is not damaged. It is in the wardrobe, but retired from public use around 2009.
WSM 2006 version: somehow it has a lot worse quality, washing distorted it's original tailoring (color is still the same black). Sometimes I wear it for sleeping, but it's rather out of use.