We see a lot of them at tractor and farm shows around here, too.
For years, there was an old farmyard just outside Montgomery, MN that was a graveyard/parking lot for maybe as many as forty or fifty old steam tractor, many of them probably restorable. I used to make a point of stopping by there for photo ops whenever my motorbike rides took me down to that quadrant of the state.
The story was that these machines were tied up in an estate for years. One day about 25 years ago, I went by there and they were gone. The farmhouse and all the outbuildings had been leveled.i didn't have any contacts in that part of the state, and never did find out what the deal was, although it must have made some news down there at the time.
I hope that at least some of those old locomotives will show up at farm shows from time to time. I remain skeptical, however. The Xers and millenials do not seem to have the affinity for old machinery that we and our grandfathers did.