Repairability....
I feel that most anything can be repaired on these, though, to me, having as much original, especially the original compressor, is a big selling point. Aside from the loss of originality, a modern compressor likely wouldn't last as long as the well-made original, even with a 50 year head start lol.
They used to sell kits for appliance repairmen to use to repair leaks in evaporators caused by people (morons?) using ice picks and the like for defrosting. The kits, IIRC, contained two part epoxy, a vial of cleaner, and a little piece of sand paper or similar.... Then evacuate and recharge and it would be good to go, probably for decades so long as people don't poke at it lol.
Keith