snip

It is a fact of human nature that most people value a thing more if it
took some investment of themselves to acquire.

73 de Jim, N2EY

I think this is precisely why some people argue so vociferously for code
tesing despite the lack of any logical arguments for retaining it. That is
to say, they value it because it's hard instead of because it's necessary
(which it isn't!!!).

73 de Alun, N3KIP