I can't help but think your logic is a little askew.
Leica are notorious for having long lasting customers, diehards who stay with them. The glitch caused by the success of the M9 aside, buying a lens usually, for most people, means a lens for life. So even the high initial price is a small price compared to the fickleness of your average keen photographer who is perfectly willing to jump systems, or buy new bodies and lenses before the last one has been properly run in. The loss of money over the average photographers life (those with no particular allegience) of disposing of expensive bodies and lenses at knock down secondhand prices is astonishing. Not to mention those that like to buy the latest qizmo cameras (such as the X100) as backups, well thats is until the next backup candidate is announced....
Its not the luxury goods that are the cause of wanton waste (a good pair of hand made shoes will last ten times longer than cheap pair of loafers, but not cost ten times the price), but people who always need the latest of something. And lets get that into perspective. Leica always release the very best product they can with no holding back of design and technology. Don't try and tell me Canon couldn't make an immediate jump to another generation of DSLR (or whatever) right now. But they need to milk the consumer market with gradual upgrades.
Steve