3) As film cameras get older and older it is becoming harder and harder to find examples that have not been beat to hell and are in good working order.
...especially with the more recent electronic cameras. In my experience, when a Canonet or Hi-Matic dies, it dies *dead*; it's not like a 1970s SLR that still gives you manual exposure if the meter fails, or an older all-manual camera that can be repaired with reasonable effort---the repair exceeds the value of the camera if it's possible at all. So every failure diminishes the available pool.
San Diego, CA, USA
The lady of the house has to be a pretty swell sort of person to put up with the annoyance of a photographer.
-The Little Technical Library, _Developing, Printing, And Enlarging_