[paulmd]

KEH used to be a lot better before they got acquired. Their ratings have taken a tumble over the last decade.

I don't have a better answer though - I still buy from them from time to time. eBay is the big alternative if you're looking for something specific. Note that Japanese sellers list a lot of stuff on ebay but they tend to do it at fairly high BIN prices that don't necessarily move instantly - so don't look at those prices and think that's normal, they're just waiting for someone with a nice thick wallet to get impatient. The prices stuff actually sells at will be much lower.

Pentax MX is a good camera though, very similar to the FM2 (although lacking the 1/2000th shutter of the FM2n). Maybe you're thinking of the Pentax ME, which (like the Nikon FE/FG) are another early-electronics camera and suffered very high failure rates over the years (with depleted spare parts reserves at this point). Nothing wrong with the MX though - it's a mechanical workhorse, small, reliable, bright viewfinder. I'd actually categorize it as an underappreciated gem, even though it's fairly well-appreciated in the Pentax community.