This is an issue that many people, in many business applications, have been doing quietly for a long time. It's not always the scarcity of the parts that drives it. Sometimes it is the COST of the new parts that fuels "buying for parts".
I have done so in the farming business numerous times by buying a used piece of equipment at auction for little money, then using parts from it for many years. It's not a new concept, it's just common sense sometimes.
BTW, I and many others don't agree with Hoenig's anathema on ejectors. I have desired and used them hard for many years with precious little issues. A quick scanning of my using double guns yields a total of over twenty with ejectors. Over my lifetime with them I have had exactly two issues with ejectors that needed repairs. I performed the repairs both times myself. IMO, it's an overblown issue that's sometimes maximized to sell non-ejector guns to the uninformed. However, I've got zero problems with anyone who, for some reason I don't comprehend, just doesn't like them.
