I wonder about that stuff all the time, mostly with cars I drive and especially with my other hobby, which is HO scale slot cars. I have over 400 of them, and maybe 75 or so are are original Aurora Thunderjets from the 1960s found at toy shows and yard sales or on Fleabay. What kid spent hours racing this around a track in a basement 40 years ago? Did this one win lots of races against the neighborhood kids? This one blue Mako Shark in particular got me thinking. Without getting into too much detail that you guys might not need, it was a stock original Thunderjet that had a bunch of aftermarket hop-up parts like the hot "Mean Green" armature, red/white heavy duty motor magnets, AFX high performance motor brushes, hop-up high speed gear set, big wide back tires... Some kid probably spend a bunch of paper route money and many afternoons at the hobby shop putting this thing together. I cleaned it and tuned it and left it exactly as is...
I don't have any vintage Stingrays, but I imagine they're the same, only better. What kid rode this around his neighborhood? Or bought that baseball bat rack with paper route money? How did the scars on the bike get there? And I suppose ANY old bike could have stories like that to tell...
--rick