What Nolan has done, is taken characters in a fantasy world, and put them in a more realistic setting closer to ours. They are using methods and tools that are closer to ours, and in my opinion, I don't like how much it was pushed in TDK. The Joker always had perma-white skin, and now(for the sake of realism or style choice), it was taken out. The Joker normally uses exaggerated gadgets/tools to kill his victims, but now, he only uses real world weapons.
I get it, and it could be argued that "The Joker" is still there, but I would fully disagree, when the most important element to this, and most comic book superheros, is the fantasy element. When you have to strip away someones gadgets, the very tools that helps define the character, and swap it out for real world weapons, takes away what makes these characters. I understand the style that Nolan has went for, but I think it was one step forward, and two steps back, and a disservice to what the characters, and the environment that they live in, is about. You can make a Lord of the rings movie, and have it set in a modern/realistic setting, and it wouldn't really be the same, because you're stripping away vital part to the story/characters: The Fantasy Element. And I'm going by the very definition of "fantasy", which states-imaginative fiction featuring especially strange settings and grotesque characters
There are plenty of great Batman/Joker comicbooks that have the same amount of outlandish weapons as this movie. '5 way revenge' and 'The Killing Joke'.
There are plenty of fantasy elements used here.
I just think it's a shame that you're holding onto a somewhat more cartoonish version, and forgetting the joker that has appeared in many tales, using his intellect as opposed to joy buzzers.
If the Joker was really so reliant on such gimmicks he would be a crap character, take all those things away from him and he is still the Joker, he is that strong a character.
You're ruining a great BM/J movie for yourself by hanging onto certain notions you feel should be there.
And you seem to be embaressed at seeing these guys in a more real world environment, it's handled beautifully, Nolan does a bang up job of bringing us these larger than life characters in a functioning multi-layered world you can take seriously.
I mean, i had to put up with the sub-par BM movies of 89-97, i was waiting on this kind of approach all my life, y'know, like Superman the movie, and Superman II, a superhero in a world I could recognise as being not too different from a street I could walk down in real life.
Thank god for Nolan, i want to hug the guy for making these movies and taking the subject matter seriously as a work of art.
No more dumb, half assed movies with bum scripts that are nothing like the best of the comics. Finally i could sit in a movie with a bunch of normal people who don't know a comicbook from a spank mag, and not cringe during a Batman movie, whether due to camp, or boring scenes. They finally got to feel what it's like to read a great BM story, and why we geeks were obsessed with this stuff for so long.
edit: Oh, and as infinity pointed out, it may well have been an aesthetic choice for the make-up on the joker. He looks fantastic, and I would say, better than Jack or Romero, who both looked great(forget R's moustache for a moment).
It looks more random and punk, ie more dangerous, and less like a usual clown you would get in any number of horror movies.