See, I didn't even KNOW Aurora did an astronaut kit, or it was a foggy memory. I don't recall seeing it in a store when I was buying such things back in the '60s.The astronaut with the Gemini AMU was from Aurora. The Revell Gemini Astronaut was used in the later Revell kit with a Space Shuttle AMU.
Revell's "Apollo Astronaut on the Moon". It might not have been the best selling kit from Revell's catalogue, but I wouldn't say it's not very popular.Revell had a different astronaut kit, the big Neil Armstrong model. This was reissued in the late 90s when Revell finally got around to making a new mold to replace the missing clear face visor. I can't say I have ever seen that kit built up... its not very popular.