Quote: Personally I don't consider a 30x20 at six feet to be a normal viewing distance. Right now I'm typing on a 29" diagonal monitor.
And on my 27" monitor, I can absolutely guarantee you, you'll see no difference between a 24 MP D3200 and a 16 MP K-5 file. It was a bit distressing however, that I had to go to quite a bit of work in raw, to match what came off her camera in jpeg. Sometimes the work made the K-5 images better, but only a very small percentage of the time.
You'd have to go way above 4700 pixels wide to see any difference at all, even if there was a difference in IQ, which there isn't.