James, another pissed off BMW owner who does not tolerate criticism? Proving my point a bit more that it is a religion more than a mass audio brand? as far as my knowledge of audio gear pricing and markups, PM me for a free tutorial, this could save you some cash on your next purchase of the BMW Lunar Stone Dust coated tweeter that extends over 100kHz for the exclusive pleasure of dolphins and belugas(coming as soon as someone else mass produces diamond tweeters see below:
http://us.gizmodo.com/gadgets/diamond-tweeter/index.php
http://us.gizmodo.com/gadgets/diamond-tweeter/index.php