I am impressed with the number of those who still have germanium parts. I recently repaired an HP counter that had a shorted 2N404. As it happened, my hoarding aspect meant that I still had some stock of the exact part. The counter has been working great for a while now. Model 5245L.
I have several drawers labeled Obsolete Transistors that include germanium as well as early silicon. I am mentally unable to toss them, although I don't imagine they will ever get used.
A friend recently obtained a couple of brand new CK722s in their original packaging. Those were, to my knowledge, the first commercially avaialbe transistors. Most of them wouldn't work.