Why did Justice League Unlimited end?

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Tags

1. #began
2. #epilogue
3. #where
4. #network
5. #written
6. #unlimited
7. #entire
8. #universe
9. #suggesting
10. #premiere
11. #started
12. #bring
13. #league
14. #series
15. #close
16. #decided
17. #intended
18. #justice
19. #third
20. #season
21. #which
22. #animated
23. #cartoon
24. #renew
25. #writers
26. #batman