We discussed the market price for the Noctilux 1.2/50 a short while ago. I watched with interest how high the one being offered by Westlicht in Vienna would go in their auctions - and you know whar - 16 000€ excl. premium. This lens costs the buyer close to 20 000€.
WestLicht Photographica Auction
Mine is in about the same condition - but the box is more worn.