Cityguide: Metropolis

If you're not watching Justice League Unlimited, you're missing exchanges like this:

(Superman and Wonder Woman are trying to convince Batman to join them for dinner at a Metropolis diner)

Superman: And the milkshakes are so thick that...

(Supes is unexpectedly possessed by Deadman)

Deadman as Superman: I NEED YOUR HELP!!!

Wonder Woman: Wow. That's pretty thick.

Why this gem is ending its run this season, I can't understand.