Interesting subject. I'd like to know if there is any concrete information as well.This isn't really the same thing, as it's a 1970's MM cartridge, but I'm quite fond of the Audio Technica AT20SL. It was sold as a limited edition unit and came in a wooden display case. I've managed to keep two of them in really good shape.
I'm always concerned that needle replacement may become impossible. So far, there has always been a replacement that was suitable, having a high quality tip and cantilever. But the thing I worry about with turntables is losing the ability to service them, and needles are the primary concern. Belts for belt-drive tables rate a close second.