I follow the publications & on line stuff. I see the bigger excavators listed at 20000 hours. I wonder if that is utterly worn out?
Mini excavators seem more often low hour machines. I suppose the minis are bought new by white collar types wanting a toy. In ten years they haven't used them much.
I had a backhoe, John Deere 410C at 27 years old my son's friend bought it. 2200 hours, it looked pretty good. Nine years earlier a trust fund hippie, maybe 45 years old bought an old farm in VT & moved there. As he explained it, he thought it made sense to buy a backhoe. After 9 years he hadn't thought of a reason to dig a hole.
I hauled it home for the buyer, a builder. He planned to do his own digging.
Two years later, he decided digging was not his idea of fun. He sold it to me. Some of these smaller machines excavator, or backhoe, are owned by people who don't use them every day. They sometimes have a lot of life left in them. Big excavators tend to have a lot of hours on them.
I had it in mind you were way out in the bowels of NY, near Saratoga.