This response more or less fits where I'm standing right now, with the possible exception of the red highlighted portion:
Originally posted by cxdoo Nope, because:
* 16 Mp is the upper limit of what I subjectively need.
* 16 Mp is the upper limit of what my computer can handle.
* There is no significant benefit to currently available newer sensors in Pentax bodies.
* I'd like but don't particularly need better AF.
* I don't need to crop.
I don't care about LCD, dual slots, wifi, gps, video, more buttons & wheels.
I'm not interested in FF; that's too much for me in every sense.
I've got a K-5 IIs and a Ricoh GR and from where I'm standing, I'll be running the both of them into the ground before upgrading. Both were purchased about 2 years ago so I recon they've got at least two more years in them if not more.
Glass-wise I may make minor purchases/upgrades but I run from 8mm through to 300mm with a mix of great quality glass (Sigma 8-16, Sigma 85mm, DA*50-135mm), sufficient quality (DA50mm, DA55-300mm, Tamron 17-50mm) and some specialty stuff (Tammy 90mm macro, Lensbaby, Arax Tilt lens) which all together cover all of my needs on the K-mount. GR-wise I have the GW3. On top of that I've got Haida ND's for a few of my lens-sizes as well as step-up rings so they'll do the job on the GR as well. Flash is covered by the Metz 58 AF1 (which I hardly ever use).
So, all said and done, unless I drop my K-5 IIs or GR on a concrete floor, I'm not in the market for a number of years to come for any photogear.