[Sentai]

I think Go-Buster failed because it tried to be the Japanese Version of the American Adaptaion of the Super Sentai. Instead of finding it's own voice, it's own vision, it tried copying what we did to their original vision. It was muddled. Then look at some of the toys. Red Bust Figuart was molded from atleast seven different shades of red. Then you get to the Mechs, which are the real high sellers for a Sentai series, and parts of it were really muddled. Part of Bandai's "Extra Parts?! Nuuuuuuuuuuu" campaign. The best one has been Lion-Oh and that didn't come out untill a few weeks ago. Toei needs to stick to what they do best. Original stories that stand on their own. Not copying our copy of their originality.

Or as another theory.

Maybe after the huge hit Gokaiger was anything was doomed to failure. I think more after the awesome of Gokaiger they came and laid a log, but that's me.