JustAnotherExaminer made the point that KSR allows combination of references with no motivation to combine if the combination produces predictable results. So, in the manner introduced by JAE, it's an alternative to requiring a motivation of some sort.
Not to be picky, but JAE said that KSR allows combination without EXPLICIT motivation if there are BENEFICIAL predictable results.
Not to be picky, but JAE said that he doesn't need motivation if there are predictable results.

I added the explicit and the
beneficial parts in my reply, because I thought that's what he/she meant, but JimIvey's post in correct with regards to what
JAE said in his/her post.
As a side note, I'm not sure what "familiar elements" and "known methods" adds to the obviousness analysis -- both of those phrases sound like they relate to novelty.
For what a non-expert opinion is worth, I think familiar and known relates to prior art. It just says that none of the
elements of the combination are novel,
but it doesn't say anything about
combination not being novel, so it's not related to the novelty of the claimed invention. So in other words I think the
meaning is that each of the features of the claimed invention are known in the prior art. It means that a POSITA would not have any difficulty in combining
the features if so desired. Predictable results means that the invention doesn't disclose anything that's not known in the prior art about the reasons why
a POSITA would want to combine the references, so the claimed invention is truly no more than a sum of its non-novel parts.
To some degree any obviousness argument is about novelty and at its core means that the only reason the invention is novel is that nobody bothered
to do it before, and that the invention disclosure doesn't give POSITAs a good enough reason to change that attitude (enablement? utility?). It's all
connected I think, just different ways to look at the same thing. It's just that at some angles things are more obvious
