I've had some impressive customer service from Yamaha concerning decades old saxophones that they have zero prospect of generating revenue from in the future, for an unrelated (musical) data point.
They give a good service because they respect the thing they built and the person who cares for it. They want their products to live and bring joy to people who guards and cares for them.
This is a completely different and much deeper philosophy.
This is not limited to Japanese companies though. A Lamy representative told me that the factory in Germany restored an out of production fountain pen to mint condition, for free.
Want a bit for your early 50s Mercedes? Your local dealer knows a guy in Stuttgart who will send it over.
Want a bit for your early 30s Mercedes? Your local dealer knows a guy in Stuttgart who knows a guy who will *just go and make you one*, albeit it will be priced accordingly.
Despite combing the Earth for that fifth wheel for the spare, he was never able to find one but, since the spare tire was kept underneath a trimmed cover on the back of the car, it wasn't missed. The instrument dials he faked by carefully photographing, and printing on photographic paper, a set of dial faces.
Those rubber window moldings?
He was able to have a well-connected German friend contact Mercedes in Germany where they responded by breaking out the original molds and producing two complete sets for the car.
The year after the car was complete, it won a local Mercedes-Benz of America concours show by 4/100ths of one point over a Gullwing that had just gone through a $200,000 restoration.
Or the customer will be Austrian and there is nothing for it but assassinating archdukes and bloody warfare over a 1.50EUR gasket.