[robespierre]

Wow, Irinkus, that's a real time capsule. Everything that was commonly lost and separated from the machine, including the monitor stand and the cables.

The Apple IIc had more custom chips than earlier models, which makes them harder to repair, so there are fewer working examples today than you might expect.
Particularly the MMU, IOU, and IWM chips are getting scarce. For whatever reason, a large number of IIc machines on auction sites have blown one or more of these chips.

The DRAM is also not the most reliable. Many IIc contain Micron DRAM which based on observation has started to fail. Insidiously, these failures can cause error messages like "Check Disk Drive", which then lead to further failures of IWMs when users try to swap the internal drive mechanism. The internal drive header in the IIc is not compatible with Disk ][ drives.