I think you can really only answer that by how much to insure and how much to replace. Also how many bikes you own factors into it, and how much ability you have to fund a replacement.
I am old now, and I have gravitated to less valuable bikes. I had a 2014 DR650 and a 2005 FZ-1, plus two snowmobiles. I realized having all of them on full coverage cost more than the risk, since not all of them would be stolen/crashed at the same time, and the most valuable one of the whole bunch was only worth $4k. And if something happened to any of them, I would have something to ride. I did always have full coverage on my ATV, even though it was not more valuable than the motorcycles and sleds, because they get stolen so often, and the replacements are so costly.
But now I plan to only have the SV for a while, and it would cost at least $6k to replace, and since I would not have anything in reserve I would want another motorcycle, and the insurance coverage would be a big head start on whatever I chose to get. And full coverage on an SV for an old guy is cheap.