So many of these bikes have a broken history of sitting (some in a poor environment) then being 'revived', sort of, then sitting again before we get them. My last couple were victims of a poor, or incomplete revival and bear the damages you would think that resulted; piston/ring, wrist pin/ small end and even crank bearing journal damage. Low miles or signs of fairly recent work, don't mean a thing when underlying issues from contamination or blockage haven't been fixed and the bike was then used again in that state until it acted up again and got sidelined.
My experiences (few that they are) say that it's less common to find a higher mileage but well maintained motor in much better shape.
The land of barns full of old bike treasures keeps coughing them up with tales of neglect. People who pull them out, hose them off, put gas in it and start them saying, "Well, it's a Honda, after all", with a grin, have no clue what they are actually doing. It would have been better off left sitting in the barn instead of being worked on halfway.