In 1990 Gobblin’ Goblins were the last ghost figures from Kenner as The Real Ghostbusters popularity, not so arguably were being overtaken by animated mutated turtles.
I hardly had new The Real Ghostbusters toys by then. I definitely know after Ghostbusters II I didn’t own any of the 3 Gobbin’ Goblins.
If I did know about them, the interest wasn’t their. Not until I began collecting The Real Ghostbusters toys 21 years later.