Perhaps a myth that "German glass is better than Japanese". Who knows. Some others are listed for 500-700$ which is more reasonable for a 50/1.5 lens and on par with Summarit 50/1.5, no?
Some people say it does magic at night, but who am I to judge, my most expensive lens is worth only 60$
Yeah, that one inspired the design (exterior) of cosinas M mount lens a couple of years ago. The lens was originally designed for the Voigtländer Prominent camera. The Prominent version is not exceedingly rare, but the Leitz screwmount version is. There is or was at some point even a company selling adapters that allowed adapting the Prominent version to Leica.