A fun list. While the only camera on the list I own is the Pentax LX, I do have three of them, with the finder base, the high point finder for the base, and two winders. They are addictive, and are unsurpassed for looooong exposures at night or fireworks.

I'd nominate for addition, since I own them , the Voigtlander Vitessa L with the f2 Ultron lens, the Retina IIIc with the f2 Xenon, and the lovely Zeiss Ikon Contessa with the f2.8 Tessar. This last early 1950's gem has a level of fit and finish which would be very hard to equal with new cameras. Perhaps Leica.