I can't decide between FF and APS-C. I have ~500 Canadian loonies to spend on a camera, and I've narrowed it down to either a Nikon D610 or D7200. So FF or APS-C at this point.

I only care about taking a camera with me on vacation and learning macrophotography maybe, so I'd only have a kit lens and like a 100mm macro lens.

I also sort of want to try to mount old AI lenses and that is why I'm considering FF in the first place, but I can't decide if that is a good enough reason considering the price differences between DX and FX lenses.