Ron Jeffries, on the agile-testing mailing list said

The last couple of times I read it, I took a somewhat different lesson from /Zen and the Art of Motorcycle Maintenance/, having to do with one’s own level of caring, and the key role that plays in happiness, at least to a certain kind of person. I include myself in that “kind”. There are lessons to be learned about outsiders’ view of quality as well. I like my work to be appreciated — though sometimes I wonder whether that is perhaps a personality flaw. I also like it to be valued economically, which may be a flaw as well, but leads to a certain kind of convenience.

I like to consider myself “that kind of person too”.