Upload & Sell: Off
I need a DSLR primarily to feed my animal photography pretentions (in particular birds in flight). Without the superior AF, pentaprism viewfinder, and controls of a good DSLR, I have no use for a DSLR per se and the emergence of micro-4/3s has had me using this for almost all my non-animal photography.
Pentax has always intrigued me: in-camera image stabilization, excellent reputation of its glass, a truly wide APS-C prime that Canikon lacks (the primary thing that launched me into m4/3 has been the portability of the lenses), and sensor technology that seems to basically keep up with Canikon.
Negatives IMO about Pentax: their current lineup lacks a lot of big telephotos (especially the exotics - am I wrong on this?), third party makers occasionally drop k-mount lenses, and now this allegation about AF problems.
But the big problem, IMO is: I have a decent amount of money in the Nikon and m4/3 lens baskets (I would like to reduce that but that's another thread). Selling and going Pentax would not be a problem (since I got most of those lenses used and could sell them for roughly what I paid for them). But that represents a massive investment on a system I'm not terribly familiar with.
Also, given the current state of the camera market and my assessment that there will be consolidation (perhaps massive) in the next few years, I'm hesitant to bet the lens basket money into non-Canikon or Sony products, since those makers will almost certainly still be making basically their current lineup in 4-5 years. Those makers have much stronger market and marketing positions than others - I hate to base my choices based on market presence and sales, but really, that matters sales-wise unless you're looking to be a boutique company like Leica or (it seems) Fujifilm. (m4/3 gives me a lot of heartburn here - I only justify it by the sheer amount of photography I do with m4/3).