Lots of toys, many non-model railroad, hold a warm place in my heart. Unfortunately, aside from only one boxcar from my original HO Lindberg Line set I received for Christmas 1962... they are all gone.
When I was but a lad, they were just toys. I really enjoyed them at the time, but each would inevitably get played to death (if fragile or mechanized), or my interest would shift and the toy would fall into disuse, and their disposition is unknown to me. (I figure mom would have a "toy-cleaning" every year or more and clean out stuff I was no longer using.)
"Back then", I didn't realize, nor even consider, that perhaps I should preserve and save them for later. Besides, like I said, by the time the toy was reaching the end of its service life... it typically wasn't worth saving. Also, I think I myself dumped some of them after several years of disuse as I progressed on to be more interested in "young man" things. (Mini-bikes/motorcyles, cars, girls, etc.)
It wasn't until I was well underway as an adult that I reflected back with fondness for some of the toys of my youth.
In retrospect, I wished I'd kept the little 1940s Marx litho set that was given to me in '59 or '60 by another family who's son has gone off to college. (Its robust nature was certainly capable of surviving the banging and bumping of being moved from place to pace as my life unfolded.) I also wish I'd taken better care of my original HO Lindberg Lines set. Same for such Marx toys as "Super Crane", "Big Bruiser", my original G.I. Joe's, and on and on.
However, you can't save it all and as a lad, I didn't grasp the concept of "the future" too well. I just lived for the day without a care in the world and played and had a ton of fun with my stuff.
EDIT: I just happened to remember. I have my ORIGINAL Fox 36X model airplane glow fuel engine that I purchased in 1966 0r '67, along with my original Supertigre C35 and possibly my original Fox 35 Stunt glow engine! And yes, those are special to me.
Andre