I don't think it was. It lasted a while, but that had to do with it being the first syndicated afternoon Disney animated cartoon. (Gummi Bears was a saturday morning one first.) It lasted a bit because of that, but around the same time you had the really popular cartoons and shows, like Tiny Toon Adventures, Batman the Animated series, Teenage Mutant Ninja Turtles, and the Mighty Morphin Power Rangers.
Ducktales was a very well done series, but what appeals to adults doesn't always appeal to kids, and the Ducktales movie bombed so bad it canceled the rest of the movies based on Disney Afternoon shows.
For comparison, the best Disney Afternoon series in the states was Aladdin, which outlasted Ducktales by several years, and spawned several direct to DVD movies.
Ducktales was a very well done series, but what appeals to adults doesn't always appeal to kids, and the Ducktales movie bombed so bad it canceled the rest of the movies based on Disney Afternoon shows.
For comparison, the best Disney Afternoon series in the states was Aladdin, which outlasted Ducktales by several years, and spawned several direct to DVD movies.