Bought 1 new in Jan from B&H, 1 open box return from Amazon in June. 32K exposures on oldest, 17K exposures on the other. All my work is outbound, they spend lots of time in my truck and in crowds. Dust, heat, cold, rain and even the occasional snow. I usually have one on each shoulder, lens caps stay in the bag and I don't use filters but I do use hoods always. I did learn not to lose track & put fully charged batteries back in the charger. It just keeps charging, for a long time. K10/20 charger didn't so that. Here are a few thousand photos in my online galleries:
View and Purchase Downloads & Prints | Brooke Meyer
Kept a K20 as a backup and haven't used it this year except to loan to a camera-less stepson. The K-5s do what I need to do and I'd buy them again tomorrow. I need the quiet, ISO and frame rate even though I never shoot continuous. Its important for dance. Never fussed with lens calibration. Haven't seen the need.
Haven't shot anything but manual in 3 years so I can't comment on metering or Live View or Video. Still use a handheld meter & Sunny 16. Since 2007, K10, two K20's and now two K-5s, only DNGs and the K-5 DR is
outstanding. I have no idea why I would need FF. My cropped 16x20's & 16x24's do just fine in juried exhibits where a lot of entries are from FF bodies.
Whats more important is learning how to be a photographer and if you choose, an artist. That's very different from being a camera owner. Waiting in a store the other day, I passed the time with a D7000. It worked okay. If I was shooting Nikon, I'd do it the same & have two identical bodies. There isn't time to think about which button on assignments or with customers.
I do love the ruggedness, in body stabilization and DNG output. I've no experience with kit lenses and don't know why people buy them. The Tamron 28-75/2.8 is a wonderful all around lens, even in the Nikon mount. The Pentax DA 12-24 & DA* 50-135 are very good lenses. That's all you need but I do confess to having a Sigma 100-300/4 for performances.
If your photographs are good it will be because of you.
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