With your point there being, as I understand it Elli, that it is an error to look for "perfect" and "imperfect" pleasure, just as it it is an error to look for "true" or "false" pleasures -- with the reason for the error being that there is no outside, Platonic "objective" standard by which to say that some pleasures are true and others false - there are only particular pleasures, no Platonic categories of "good/true" and "bad/false" pleasures.
And the "machine" analogy is that humans are creatures of nature, just like machines are creatures of men, and so we must play the cards we are dealt: Nature did not create "perfect" humans by which to judge ourselves, just as humans do not create "perfect" machines by which to judge all other machines: each human, and each machine, is an individual particular which must be evaluated on its on merits.
Do I follow you correctly?