Just curious. I'm not a pro, far from it. But, I do like Teh Nikons....D4, D600, D7000. Here's my question: why no built-in GPS? It cannot be the case that Nikon's current line was designed so long ago that GPS was not an option. A GPS chip costs, what, 30 cents? I have gone the iPhone GPS app route, I have a couple of little external GPS receivers, but it just makes no sense to me that a new camera like the D610 does not have built in GPS. It looks like the 5300 is the first Nikon DSLR with built-in GPS. Do you expect this to continue up the line?