The message from Rod contains these words:
Historically, American machines averaged around 20 years. However since they're generally kept in the basement which in most instances will have bare concrete/concrete block/stone walls, the appeareance isn't generally an issue.
How poorly they washed is another issue entirely, of course. And the undies and the dishtowels tend to be washed together in cold or warm water :-(. No wonder they have to add bleach :-)
The current generation of American machines are a lot less solidly built and durability seems to be dropping rapidly.