The K-S1 body is selling for the equivalent of just over 300 pounds here in Chengdu China, with a non-wr lens it's about 360. So for me it is a no brainer, I am semi-retired now, and somewhat lazy, so instead of buying the K-3 that was in my plans for sometime in the future, I grabbed a black K-S1 body. Saves me about 200 pounds, and about 200gms. Check this out:
Less than a kilogram, with 3 nice primes - 21, 40, 70. It replaces my old K-5, and I like the results I get from it, as you can see from some of the other shots on my flickr page. If I buy a second K-S1 later in a different colour, or maybe even a K-S2, I would sometimes be able to realise my dream of carrying 2 bodies, with the 21 and my 100WR macro already mounted. And still be under 2 kg.