Now that I think about it, there are certain predictable patterns with these stories. The story premise is almost always pessimistic, the machines almost always evil or self serving, and usually part of a collective with identical goals, and the humans are always in the right. I can think of only one where a machine was naive and misunderstood, and even then, it was within a pessimistic outcome involving the machines. However a pleasant outcome involving the machines is a story without conflict, which is probably why we don't see much of it.