I always felt the joke of Bender was that he was the Openly-Obnoxious-D-Bag(tm) that every closet d-bag wanted to be, however I might just be projecting.xPixelatedx said:The 'Oh look it's not human but it drinks Alcohol. SO FUNNY! HUR HUR HUR HUR' trope.
It got old in Futurama very fast.
It got old in Family Guy very fast.
It was old in American Dad from day one.
I get the joke, it's funny because they are a robot, dog, alien. Ok, that's great, but you've beaten that joke into infinity now, and the blackhole you've made could very well swallow all existence.
On topic: Most "this character is useless, LOL" jokes get old very fast see Ron Stoppable for reference.