This Mefi thread about playsets of yore will eat some of your time, but it’ll be worth it. Amazingly, the linked article did NOT include what I think of as the ur-Playset, the Fisher-Price castle I had as a tyke that was so well built that some kid is probably STILL playing with it somewhere.
(For the record, my Death Star is in my closet. Still.)
The persistent absence of Micronauts in toy nostalgia threads propels me time and time again into a vortex of unyielding despair.
I feel your pain.