South Park was created, like, 12 years ago. back then they didn't have yer CGI and yer iPads and yer con-damns no they did not, sonny.
it was first made by cutting out shapes from paper and arranging them to make people/scenes/stuff.
I think.
well yeah and when they finally got the technology to make animation without having to use paper they didn't want to change the style.
so now you have le South Park.