I started with D5100, what I do is portrait/people a lot, and I don't particularly really care about shooting sports/cars/birds/landscape.
What I shoot is prime lenses, and low light is not something really important to me since I mostly shoot at f/8 anyway, and rarely go more than ISO 200. I have several SB910/SB700 speedlights for portrait work. I don't print wall size, but often print 10x15 size.
Now the D610 price is coming down, is it worth to get the D610, or should I get the D7100?
Anyone else in the same situation? It would be nice to have another toy, but which is really better for this type of work?