Haha funny thread !
If anyone here actually would plan to go FX - please remember that its not just the body. Its also good lenses. I spent ~5k€ on my D600, 28mm f1.8, 50mm f1.8, 70-200mm f4 VR, 16-35mm f4 VR. Thats the kind of number you might look at ! Makes the price for the body look less relevant, doesnt it ?
We are currently in an economic crisis. People in general have less money. That means shrinking markets. Thus its a consumer market - the producers have to tempt us with better and better products in order to still get sales.
Thats also why you might still be able to buy a new D3100, even if that model is quite old now (I havent recently checked if they are STILL around, but they might well be).
I think the D7100 is a too good camera for the price it sells for, I think it stops people from upgrading to FX because they just dont feel the need to,
Why, yes, the D7100 is great !
But Nikon kills DX simply by avoiding giving DX users a good selection of DX lenses.
And the D7100, while being close to, well, "perfect" in every other way, is sadly intentionally crippled by giving it a too small buffer.
One camera for me is all I need, if I had an FX I wouldnt touch a DX anymore, just my character.
I kept my D5100 as backup. And I indeed had need of it, once, so it was a good thing I did !
And once I have the D750, the D600 will be an even sweeter backup - same lenses, same memory cards, same batteries, same sensor size, same resolution ! And, most importantly, less lens changes, too.
They are different beasts. DX is preferred for sports and birding, FX for most other things.
If you shoot everything and can afford both, it's the way to go.
Birding certainly, yes, because you can never have enough reach for that. Sports in good light, but otherwise not so much. And in either case, with the D7100, you have the problem of the smallish buffer.
how much does an FX sensor cost again ?
Nobody knows for sure ... except people who work in that industry. But its probably around a couple hundred bucks. And once you spend this much on the sensor alone, of course you want the surroundings to be of compareable quality as well. Thats why "full frame" is so expensive.
Is Nikon going to answer the 7D Mark II?
Many people hope so. And it looks likely - doesnt it ? Though at this juncture they could just release a D7200 with
+ increased buffer, maybe also higher fps
+ WiFi (for which a full metal body is a problem, so that works out nicely), maybe also GPS
+ the new AF of the D750, with face detection and -3 EV. Maybe also a "focus on closest" option.
+ the new metering mode (highlight metering).
+ the flipscreen of the D750 (or even better a D5x00 style flipscreen, x in the range 1..3, the D5000 one sucked)
+ possibly a newer sensor (since the D5300 already has an upgrade over the D7100/D5200 - so its very likely), maybe even the 28 Megapixel one of the Samsung NX ? As this one seems to be uber.
+ AF-ON button (seems to be the main request by people used to bigger bodies)
+ couple more U<n> modes
+ Better one-hand-only ergonomics, like Canon has them