Originally posted by Winder I don't have a crystal ball, but FF bodies typically don't drop in value like APS-C bodies.
Hmm... there's a D700 with grip and 35-107mm lens and Tamron backpack on Craigslist near me right now for $795... if I was a Nikon shooter, that'd be a no-brainer. Big, lazy pixels, the 12mp can make almost any lens look good.
There's also a D750 for $1,100, a Canon 6D for $1,300, and I often see various 5Ds in the mid-$1,000s or less. So a C/N shooter looking for full-frame can get into it for less than the price of a new high-end crop body.
My old K-3 retailed for $1,300 when released three years ago, I think I paid maybe $1k for someone's review-copy one a few months after release, and I just sold it for ~$400. The K-1 is 8 months old now and retailed (until recently) for $1,800, so I'm sure we'll see used prices dipping in the next year or two. This is not really comparable to C/N though, since there's one and only one option if you want a FF Pentax, but once the K-1ii (K-1 2? K-12? sounds like a school system!) or K-1s or whatever it's called comes along, that'll help drive K-1 prices down. Heck, look at what K-5s are going for now, and that's got IMHO the best APS image quality you can get or damn close - it's crazy how cheap you can get such a great camera for.