While the Marx Naverone set is cool and you can never go wrong with some plastic dinosaurs (especially in combination with the army men!) I think the big star for me here is the Martian landing playset.
Astronauts, vehicles and that Big wheel space station? That’s all i need. I’m pretty sure you can still find these same astronauts in dollar stores.
AKA Brian Heiler author of "Rack Toys: Cheap, Crazed Playthings" and co-editor of "Toy-Ventures Magazine". Co-Host of the "Pod Stallions" podcast. Host of the Brick Mantooth Youtube channel, painter, designer, writer, mental health advocate, toy collector, Mego, and Mego Knock-Off enthusiast. I have large feet, ADHD and I live in Canada. Talk toys, not others. 
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nostalgic curmudgeon that I am, I have to do the standard gripe/whine wonder what happened to playsets? No set story,just a bunch of figures, vehicles and cheapo landcape elements.
I totally had those dinosaurs… the yellow Tyrannosaurus was my fave!
I think I have some of those “same astronauts” , not from a cool play set but from one of those supermarket packs… or was it the NASA gift shop, huh?
I have to agree with you, arkonbey. Playsets were where it was at for me. I rarely used the figures that came with them. I had a whole series of small plastic or ceramic animals and played with them until I was 12 with any number of playsets.
Man,oh,man do I miss me some Navarone playset. I remember getting one for Christmas about 1979 or so and just loving it. Also had a Martian landscape (with cool see-through dome) playset that I saved my allowance FOREVER to get.
When I think of my childhood, memories of my Navarone playset always come up. That was the coolest toy.