A really excellent review. Very insightful. I'm only a week into owning the K10 and am deliberately delaying forming a judgment but I would say that what you have written crystallises what I have been half thinking so far. I especially like the fact that you see past the K10's strengths and identify it's inevitable
weaknesses. Definitely not a fanboy review.
Incidentally, on the subject of cables. http://www.head-fi.org/t/486598/testing-audiophile-claims-and-myths
an interesting read! As is your review. Thank you.