I do shoot wildlife so sometimes I rattle off a lot of shots. I find buffer only an issue if I shoot raw+jpeg.The criticism that usually gets made about the D7100 is the buffer size is a little small, so you're not going to be shooting 400 kerjillion frames per second. But unless you make your living as a professional sports photographer then it won't matter much to you at all.
I could totally be making shit up but I seem to remember the D5200 was a significant improvement over the D5100, like to the degree that it may use the 7100's sensor or other bits. That might be worth researching.Before I thought of getting the 7100 I put a bid on a 5200. If I don't win that one I'm following a 7100.
It does.The D7100 has an internal focus motor doesn't it?
Since I'm retired, really retired not Blanchard retired, I have very little disposable income. This has to cost the same or less than repairing my current camera will cost. Mirrorless may be the future but as I don't have much of a future, they're not in my futureI'm eventually going to dump my Nikon SLR for a Fuji X-T30 or Sony A6300. Since you have lots of Nikon glass, you probably don't want to jump ship (but there are adapters available).
Mirrorless is the future. And I see no reason to lug around a huge heavy camera when something that fits in a jacket pocket or fanny pack (sorry Brits) can do every bit as good a job.
Since we have been talking glass, what should I absolutely avoid like the plague? I am finding that my new Tamron fills most of what I need for outdoors.