I know the camera is a bit on old side, but are they still relevant? I've been considering an upgrade to the d5100 and wondering if the cost is worth it. Just a little background. About all I shoot is one home a month. I'm a realtor/photographer. Most of the stuff ends up getting shrunk down in the websites and mls that we use. They say 4mb or less. I'm also not looking to go to a full blown camera either, i.e. d3 or the like. I'm also kind of stuck in the nikon world too due the extra lens I have, Tamron 10-24mm. Just looking for ideas and pointers basically. Thanks in advance.