User blog comment:KnightmareS-C075/What do you want in a Justice League T.V. series? 2015/@comment-1038387-20150301211014/@comment-1038387-20150301220330

The toyline wouldn't sell. Of course, the toyline was very limited, very detailed, and expensive ($20 was the cheapest, IIRC), so some argue it was doomed to fail. The intended target audience and the actual audience didn't match - and the actual audience wasn't the usual action figure buying group. Also, the animation was fairly expensive. The large casts - even though they all got the same, standard rate - wasn't cheap either. The larger storylines often meant some actors had to be paid for a full session and only said one line. And storyarchs also mean the network has to air it in order, can't use it for filler. There were many reasons it wasn't picked up for a third season. And no, the Weisman curse isn't one of them.

In contrast, shows like Teen Titans Go! have a 5 man cast (or less); any guest not vital to the story gets doubled by one of the regulars. The animation is simple and cheap and the stories are simple standalones. Good for the target audience, little kids. And these little kids (or rather, their parents) buy all the toys - which are just that, toys. Not highly articulate, prop heavy action figures like YJ. And because they're not as realistic, design and production is cheaper. Which means you can throw them on the shelves for a fiver.