The technician obviously wants to keep his job and wants Raymarine to keep
service in the US.

It is amazing that when the expected is done it is regarded as exceptional.

I have a fairly expensive Sony Handycam DVD 402 where the automatic lens
cover no longer works. The camera has been in the wilderness, on boats and a
few parties in less than a year of ownership. It's $150 for Sony to fix
their design error (this is a very frequent mode failure for the device) .
Thanks to the expense and Sony repair horror stories I'm going to glue the
lens open and hope that's the fix. I'll never buy Sony again and Capt RB is
right, buy the service contract.