At the moment I'm using, recreationally, my E-M5. I've been wanting to add a larger bodied camera to my bag. I have an old Nikon D40 and a couple of lenses so I've been looking at newer Nikons. My current budget gives me 3 options: a current production gray market body, a used previous model body from B&H (released 2 years ago) or a local used one of the same model, with a 18-55mm and a 70-300mm lens. All 3 are right around the same price. Of the 3, only the B&H purchase would have any kind of warranty. The seller of the gray market body promises a warranty through his shop but for some reason I'm leary. The local one is owned by a working portrait photographer so it's been well cared for, I just need to hear back from him on shutter count. Any advice? I'm looking at the D3500 and D3400. The differences between these 2 models seem minimal.