I just read today from NY times that 7% of american households have over $1M in cash. This lens is not even 1% of that, plus you don't actually spend $7K to use it. You only spend $7K - whatever depreciation there will be.
For those who think that this lens will not sell. Well, how about talk about that when it's actually on the market. For those who prefer the 50 lux or 50 noct, what if the buyer already owns all of those but still has so much cash lying around?
The more high end lenses Leica makes the better. Because if someone is not buying this, they would spend the money on another watch, or handbag, or tires for a car. I would rather have Leica make this money than Ferrari or Rolex or whatever.